Pediatrician Busts Bilingual Language Development Myths in Viral Clip

English with Dad and Korean with Mom? From baby sign language to learning both parents’ native tongues, more families are sharing their child’s early bilingual or multilingual routines on social media. While offering yet another way for baby to communicate their needs can feel empowering, the topic still raises questions and plenty of opinions about speech and language development.

To help provide some expert-backed perspective, pediatrician Dr. Mona Amin, known for her trusted insights on social media @pedsdoctalk, recently shared a viral video breaking down the science and dispelling the myth that being bilingual or multilingual confuses children or causes speech delay.

“As a pediatrician, I hear this fear a lot, especially from parents who are trying to hold onto their culture, speak their home language, or raise kids in multilingual households. The idea that bilingualism causes speech delays or “mixes up” a toddler’s brain? Just not true,” she shared.

Going beyond the usual armchair advice found online, Amin points to several studies that reinforce her message. One 2025 study in the Journal of Child Language followed bilingual children and “found no delays in babbling, first words or early word combos compared to monolingual peers.”

Amin also cites a 2023 Frontiers in Psychology review that analyzed multiple studies and concluded that bilingualism not only doesn’t delay language, it may actually improve cognitive skills like attention-switching and working memory. “So no, your child’s brain isn’t short-circuiting if you choose to speak two or more languages,” Amin added.

And what about vocabulary? For parents worried that introducing two languages could slow down word development, Amin offers reassurance. “Yes, your child might use fewer words per language at first, but when we zoom out and count all the words they’re exposed to and using (including signs and approximations), their total language skills are often right on track.”

“Think of it like having two toolboxes. Your child may not grab every tool from both boxes right away, but they are building something incredible with both,” Amin added. “And when they mix languages, that’s not confusion, that’s fluency in motion. If you’re raising your child in more than one language, you’re not confusing them. You’re giving them a gift.”

If you’re sold on the idea of a multilingual household but unsure how to begin, Amin emphasizes that there’s no one-size-fits-all approach. Whether one parent speaks a lesser-known language at home or your child is learning one language at school and another at home, the most important factor is consistent repetition and exposure.

Amin’s final piece of advice: starting early makes it easier. “Young kids’ brains are wired to soak up language-yes, even more than one! So if raising your child with two languages is important to you, don’t let this myth hold you back,” she said. “You’re not confusing them. You’re giving them a gift they’re especially ready to receive. The earlier the exposure, the more natural it becomes!”

Want to get baby started on another language? Check out these 25 Key Words in American Sign Language you can start teaching baby today.