Will Two Languages Confuse My Child? Common Myths About Bilingualism and Speech Delay
- Oribell Botero
- 2 hours ago
- 4 min read
“Will speaking two languages confuse my child?”
“Should we stop speaking our home language?”
“Will bilingualism delay speech?”
These are some of the most common questions bilingual families ask. The good news? Many of the worries parents hear about bilingualism are myths. Research consistently shows that bilingualism does not harm language development. Let’s explore four common misconceptions—and what we often see in real life.
The following case studies are based on clinical experiences. The names have been changed to maintain confidentiality.
Myth 1: A “silent period” means a child is losing their language
A silent period is a normal stage of language learning.
When children move from one language environment to another, many go through what is called a silent period. During this time, children may speak less while they observe, listen, and process the new language. This is a normal part of language learning and is not a sign of language loss.
Case Study: Natalia
Natalia moved to London from Milan at age five. She transitioned from an Italian-speaking environment to an English-speaking school. During the first few months, Natalia spoke very little at school and spent much of her time observing others.
Although her parents worried she was struggling, Natalia was actively learning and processing English. After around three months, she began communicating confidently with peers in English while continuing to speak Italian with her parents and younger brother at home.
Myth 2: Speaking more than one language causes stuttering
Being bilingual does not cause stuttering.
Sometimes, children learning language—whether monolingual or bilingual—experience periods of dysfluency (such as repetitions or hesitations), especially during times of rapid language growth and when they are learning to use more complex language. This does not necessarily mean a child has a stutter.
Case Study: James
James was born to Greek and French parents. His parents spoke English to each other, while each parent used their home language with James.
When James began preschool, concerns were raised about possible stuttering. After assessment by a speech pathologist, it became clear that James was experiencing typical developmental dysfluencies while learning increasingly complex language. His family was encouraged to continue using their home languages. Over time, his speech became more fluent.
Myth 3: Children with neurodevelopmental conditions cannot learn more than one language
Children with neurodevelopmental conditions—including Down syndrome, autism, cerebral palsy, and developmental language disorder—are capable of learning more than one language.
Unfortunately, some families are still told to stop speaking their home language after a diagnosis. However, research increasingly supports maintaining meaningful family languages whenever possible.
Case Study: Andrea
Andrea was born in the United States to Mexican parents and was diagnosed with Down syndrome. Spanish was the primary language spoken at home.
Although Andrea required speech and language support throughout childhood and adolescence, she continued to develop communication skills in both Spanish and English, maintaining meaningful connections with both her family and community.
Myth 4: Exposure to more than one language causes language delay
This is one of the most common concerns I hear from families—and one of the biggest misconceptions.
Exposing children to more than one language does not cause a language delay. If a true language delay exists, it will typically be evident across all languages.
Case Study: Celeste
Celeste grew up in a French-speaking home with exposure to English from her nanny. When she was two, she began attending an English-speaking nursery. Her family worried that starting English at nursery may have contributed to her communication difficulties.
Celeste received speech and language therapy from 2 to 4 years of age. During this time, she transitioned from an English-speaking nursery to a bilingual French–English nursery. The speech pathologist worked closely with both nurseries and Celeste’s family to support communication across settings.
Direct assessment, along with close collaboration with Celeste’s family and both nurseries, indicated that her language difficulties were present in both French and English. Although therapy sessions were conducted in English, Celeste’s parents implemented the strategies in French at home. Over time, Celeste made steady progress in both languages.
Bilingual children may distribute vocabulary across languages (for example, knowing some words in one language and others in another), but this is different from a true language delay.
If a child has a genuine language difficulty, it will usually be evident across all languages, not just one. When concerns arise, children should be considered across all languages and settings rather than assuming the second language is the cause.
Speaking more than one language is not a disadvantage—it is a strength.
The Bottom Line
Children can successfully learn more than one language. Maintaining a home language supports family relationships, cultural identity, and communication across generations.
If you have concerns about your child’s communication, seek advice from a speech pathologist familiar with bilingual language development to ensure your child is assessed appropriately across their language environment.
Want to learn more?
Here are some evidence-based resources on bilingualism and communication development:
ASHA: Learning More Than One Language
Information about bilingual language development and common myths.
ASHA: Multilingual Service Delivery in Audiology and Speech-Language Pathology
Information about assessing and supporting multilingual children.
Evidence-based information about language delays and multilingual children.
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