Monolingualism may be the norm in the U.S., but throughout most of the world, kids speak more than one language.1 In the past few decades, research has revealed more and more benefits of bilingualism. This has contributed to a resurgence of American parents interested in supporting their children in becoming bilingual, but parents understandably still have many questions. In my experience as a Bilingual Parenting Consultant and Speech-Language Pathologist, a very common concern from parents about raising children bilingual is that the child will be “confused”. Allow me to put your mind at ease. Since different people use the word “confused” to mean different things, I’ll break the responses down into five concerns and address each one in turn.

Common fears about bilingualism:

  1. My child will not know which words belong to which language.
  2. My child will mix two languages together when speaking.
  3. My child will be generally overwhelmed by dual language exposure, negatively impacting all cognitive functions.
  4. My child will not understand that some people speak only Language A, some only Language B, and some are bilingual.
  5. My child will not know which is the “real” word for an item.

Common concern #1: “My child will not know which words belong to which language.”

Monolingual people have one language system represented in their minds. Decades ago, researchers (mistakenly) thought that bilingual children under the age of three years have one language system in their minds too, composed of a hodgepodge of bits and pieces of two languages jumbled together at random. This myth lives on today despite having been debunked by research of the past few decades. The truth is, bilingual kids have two language systems represented in their minds from the very beginning of the time they can speak, and possibly even earlier than that.2

Part of the reason this myth persists is that bilingual children sometimes switch back and forth between languages (“bilingual code-switching”). Although on the surface this behavior might seem like the result of a confused child, bilingual code-switching is neither an indication of confusion nor an inability to differentiate between the two languages. Research shows that even two-year-old bilingual children from homes where one parent speaks each language have the ability to switch between their languages appropriately based on context both with familiar speakers and strangers alike.3

Common concern #2: “My child will mix two languages together when speaking.”

Mixing two languages together is nothing to worry about and is not a sign of confusion. In fact, it’s a common and normal stage of a child’s language development. This is especially true for preschool-aged children, as the language mixing stage most often occurs between the ages of two and four years.2

Bilingual code-switching may sound “mixed up” on its surface, especially if you yourself can’t understand both of the person’s languages. However, bilingual code-switching is a sophisticated means of language usage that goes by its own set of inherent rules and structures, and allows children to fill in linguistic gaps in their still-developing ability to communicate precisely what they want to say.2

After the developmental phase of language mixing, children will generally be able to switch between speaking their languages one at a time, without mixing. It’s been proven that even kids as young as two from homes where one parent speaks each language can figure out the strongest language of an unfamiliar person they’re speaking with without being directly told, and they tend to switch languages accordingly.3

If you are the parent of a bilingual kid who “code-switches” frequently and one of your goals is to minimize this behavior, one thing you can do is speak only one language at a time in the presence of your child. This gives children a clear, whole, grammatically correct language model to aspire to. It can also help the child be able to distinguish as quickly, easily and early as possible which language is which. Having said all that, it’s fine and sometimes inevitable to mix languages here and there; it is simply a fact of life in many bilingual homes. Switching between languages mid-sentence is not harmful, but speaking full sentences in one language at a time may be helpful if you have any concerns.

Common concern #3: “My child will be generally overwhelmed by dual language exposure, negatively impacting all cognitive functions.”

The incorrect idea that learning two languages exceeds children’s typical developmental capacity stems from another, underlying myth: the myth that the brain has a specifically limited amount of resources to devote to language, therefore being better at one language necessarily means being worse at the other. Half a century ago, this was a widely-held view.

What up-to-date research indicates is that learning more languages means knowing more languages. It is not necessarily true that one language must be learned at the expense of fluency in another. Current research reassures us that the human brain has enough room to learn multiple languages fluently without a cognitive burden, just as the human brain has room to allow for playing the piano well and the violin well without this knowledge being in competition with each other for space in the brain.

It’s interesting to note that multiple languages live in the same part of the brain, and not only does the brain have the ability to accommodate multiple languages, but bilinguals have denser and more gray matter in relevant areas of the brain than monolinguals.4

Of course, people do not always have an equal opportunity to become fluent in two languages, just as a child may not have an equal amount of time available to practice both violin and piano. But the mental resources it takes to play violin are not separate from the mental resources it takes to play the piano. It’s complementary to know both, and the knowledge overlaps in many ways. Just so with bilingualism.

Common concern #4: “My child will not understand that some people speak only Language A, some people speak only Language B, and some are bilingual.”

Here’s an example that a friend recently shared with me: She was at a playground in Brooklyn with her son. A toddler came up to her and repeatedly attempted to tell her something in Urdu. My friend does not speak Urdu, so she could not understand, and the little girl appeared frustrated.

My take is that making an incorrect assumption and then realizing they were incorrect – i.e. briefly encountering a situation that is confusing – is such an incredibly common occurrence for children that I don’t think it’s practical or necessary for parents to make it their goal to avoid or minimize such situations.

Monolingual children have to encounter potentially confusing linguistic situations along the way, too. For instance, a monolingual English-speaking child may encounter a person who is monolingual in a foreign language and have a similar moment of frustration. Another common example of language mix-ups that often happen with small children is that they overgeneralize –  for instance, they call all four-legged animals “dogs” upon first glance, or they may call all men “daddy” until they figure out differentiated words like “man”, “uncle”, etc.

Why the special concern about bilingualism? If being “confused” is so bad, why are we not at all concerned about other potential sources of minor, temporary confusion and frustration? Children will encounter tons of confusing things throughout their early years. It can be confusing that “1” and “l” look alike, and so do “0” and “O”. It’s confusing that “flammable” and “inflammable” mean the same thing. When I was a little kid, I found the concept of TV very confusing, because where did all of those little tiny people disappear to when someone pressed a button on the remote?

At the end of the day, it’s not your responsibility as a parent to shield your children from such linguistic mix-ups. There is nothing destructive about the type of mix-ups associated with knowing two languages. Having one’s assumptions or misconceptions dismantled is a constant part of learning for children and adults alike, and there’s no reason to believe that bilingualism causes a particularly insidious type of misunderstanding. In fact, on the contrary, there is a lot of evidence for benefits of bilingualism.

If you are concerned, one way to help a child understand that some people speak only Language A, some only Language B, and some are bilingual is to explicitly name the languages used and who uses them in an age-appropriate way. For example, you might tell your two-year-old, “Sweetie, Abuela understands ‘Dame el agua’ not ‘Give me the water.’”

Labeling languages can occasionally be worked into your conversations when relevant. This can be as simple as saying, “Daddy speaks English and Mama speaks Mandarin.” Or you can mention in conversation that China is a country where many people speak Mandarin, or mention that in Australia, people speak English, too. This lends a global context and importance to the language, and helps allow the child to internally organize and categorize what they’re hearing. I have heard some humorous stories where some children grow up thinking that their family speaks in a secret code that only their own family knows, and they are surprised to find out later that it’s actually a language that many other people worldwide speak!

Common concern #5: “My child will not know which is the ‘real’ word for an item.”

Kids tend to be adaptable and assume that whatever situation is in front of them is normal. For example: a child who has one parent who speaks with them in French and one parent who speaks with them in English is less likely to ponder whether that furry four-legged barking thing that likes to play fetch is “really” a dog or a chien, and more likely to unthinkingly accept that one parent calls it dog, the other calls it chien, and that’s just the way it is. Sure, someday the child may think, “I wonder why Papa and Grand-père call that thing ‘chien’ and Mommy and the neighbors call it ‘dog’”, but this need not be a moment to worry about any more than you might worry about your kids wondering someday “Wait, if penguins are birds, why can’t they fly?” It requires an explanation, to be sure, but that’s not necessarily worrisome. They can ask, and you can explain.

If you are concerned, one thing you can do is explicitly name the languages used and who uses them in an age-appropriate way, as described at the end of Concern #4 here. You can also explain that some families speak English only in their homes, some speak two languages, and some speak multiple languages.

A friend gave me another example of this type of confusion. She knew a family wherein the mother spoke Russian and the dad spoke almost entirely English plus some Russian nouns to the children, for example, “Do you want a (Russian word for towel)?” One day, their two-year-old child came home frustrated that she had asked them at daycare for a towel using the Russian word (which was the only word for towel that she knew) but no one at the English-speaking daycare understood her, making the child hesitant to use Russian at all for fear of not being understood.  

In this case, I would recommend that the family sticks to the “Child-Directed One Parent One Language” method (see image below for details.) General advice for raising bilingual kids includes speaking only language(s) to a child that you yourself feel comfortable speaking. I would also recommend that the parents discuss with her teacher how to best support her as a bilingual child. More tips on that topic in my post about “additive” vs. “subtractive” bilingualism.

In sum: the answer to “will exposing my child to two languages confuse them?” is that evidence does not support this being a concern. That’s a relief, because over half the world’s population speaks two or more languages, and hopefully most people on Earth are not walking around in a perpetual state of confusion!

***

Families who are trying to raise bilingual/multilingual children may find it helpful to create an individualized Family Language Plan with a supportive bilingual professional. If having a guide to help you navigate the ins and outs of implementing effective and realistic bilingual methods and strategies sounds helpful to your family, contact me for a 60 minute initial consultation via Skype. You can choose between The Basic or the Beyond Bilingual Consultation Package.


1. Tucker, G. R. (1999) A Global Perspective on Bilingualism and Bilingual Education. https://www.ericdigests.org/2000-3/global.htm
2. Paradis, J., Genesee, F., & Crago, M. B. (2011). Dual language development and disorders: A handbook on bilingualism and second language learning. Baltimore, Md: Paul H. Brookes Pub. Co.
3. Genesee, F., Nicoladis, E., & Paradis, J. (1995). Language differentiation in early bilingual development. Journal of Child Language, 22, 611-631.
4. Kovelman, I., Baker, S. A., & Petitto, L.-A. (2008). Bilingual and Monolingual Brains Compared: A Functional Magnetic Resonance Imaging Investigation of Syntactic Processing and a Possible “Neural Signature” of Bilingualism. Journal of Cognitive Neuroscience, 20(1), 153–169. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2643466/

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