What is code-switching in bilingual children?
Code-switching is when a bilingual person moves between two languages in the same conversation or sentence. In children, it is a normal and often skilful part of growing up with more than one language.
Many parents worry when their child mixes languages, but code-switching is widely seen as a natural part of bilingual development. Bilingual adults do it all the time, often to express an idea more precisely, to match the person they are talking to, or simply because one word comes to mind first.
For example, a five-year-old might say, "Mama, can I have the roti now?" or "Je veux the red one." The child is drawing on everything they know to get their message across. Sometimes they borrow a word because they have not learned it yet in the other language; sometimes the word just fits better.
Code-switching does not usually mean a child is confused. Children typically learn who speaks which language and adjust over time. Mixing tends to settle as vocabulary grows in both languages.
Practical tips: respond warmly to what your child is saying rather than stopping them. You can gently model the missing word in your target language, for example, "Yes, you can have the roti. Here is your roti, beta." Keep exposure rich in both languages so your child has more words to choose from. Stories heard in both languages can help fill gaps, because a child who knows a story in one language can more easily pick up the matching words in the other.
If you have broader concerns about how your child is talking or understanding, a speech-language therapist can help.
