Raising Bilingual Kids in Japan: Home Language, School and Phrases

When you raise children in Japan, Japanese usually becomes their strongest language through nursery and school, so the home language needs deliberate support. Keep a steady routine in your language at home, and learn the Japanese to explain it to teachers and other parents: ie de wa eigo desu, at home we speak English.

What you need to know

Many families in Japan speak another language at home: one parent or both are from abroad, or the family has moved for work. In this situation the pressure on the home language is strong. Children spend most of their waking hours in Japanese at nursery and school, their friends speak Japanese, and by school age many prefer to answer in Japanese even when spoken to in another language. Families respond in different ways, and there is no single correct method. This guide gives practical, hedged ideas that many families use, explains the school and support options you may meet, and gives you the Japanese to talk about bilingualism with teachers, health check staff and other parents, including the questions people often ask and how to answer them politely. For concerns about your child's speech or development, talk to a professional, such as the staff at the city's child health checks.

Japanese tends to become the stronger language once school starts

Steady, enjoyable routines in the home language matter more than strict rules

Tell teachers which language you use at home and why

For worries about speech, ask the city health check staff or a specialist

Four lines about your family's languages

Teachers, nursery staff, doctors and other parents will ask about your family's languages, often out of friendly curiosity. These four lines answer most of their questions. Replace eigo, English, with your own language: supeingo, Spanish, chūgokugo, Chinese, and so on.

Four picture cards: a home with a speech bubble, a child speaking two languages, a heart for the mother tongue, and two languages mixing.
Home language, both languages, mother tongue and mixing: the words of a bilingual family.
JapaneseRomajiMeaning
家では英語ですIe de wa eigo desuWe speak English at home
両方話せますRyōhō hanasemasuShe can speak both
母語bogomother tongue, first language
言葉が混ざりますKotoba ga mazarimasuHe mixes the languages

Why Japanese usually takes over

Once a child starts nursery or school in Japan, most of their day happens in Japanese: friends, teachers, games, television, signs. Many parents notice that from around school age their child answers in Japanese even when spoken to in the home language, or prefers to speak Japanese with siblings. This is very common and does not mean the home language is lost; children often understand far more than they say.

The practical lesson many families draw is that the home language needs regular, enjoyable use that the child values: reading, songs, video calls with grandparents, trips, friends who speak it. Strict rules alone tend to work less well than reasons to use the language.

JapaneseRomajiMeaning
家でも日本語で話したがります。Ie demo nihongo de hanashitagarimasu.He wants to speak Japanese even at home.
英語は分かるけど、日本語で答えます。Eigo wa wakaru kedo, nihongo de kotaemasu.She understands English but answers in Japanese.
兄弟同士は日本語です。Kyōdai dōshi wa nihongo desu.The siblings speak Japanese to each other.

Approaches many families use

There is no single correct method, and families often change approach as children grow. The table describes common options in neutral terms; mixing them is normal.

ApproachHow it worksFits when
One parent, one languageEach parent speaks their own languageParents speak different languages
Home language at homeHome language indoors, Japanese outsideBoth parents share the home language
Time or place slotsSet times or activities in each languageRoutines are easier than rules
Weekend or community classesHeritage language school or playgroupA community exists nearby

Whatever you choose, consistency and enjoyment seem to matter more than the label. Reading aloud every night in the home language, even for ten minutes, is a habit many families keep for years.

Talking to nursery staff and teachers

Tell your child's nursery or school about your family's languages early. Teachers then understand why your child might mix words, take longer to answer, or know a word in only one language. Ask them to tell you if they notice anything, and offer to help with anything written in Japanese that you need explained.

A two-column picture comparing home, where the family speaks English and reads picture books, with school, where the child speaks Japanese with friends.
Home language at home, Japanese at school: tell the teacher how your family divides it.
JapaneseRomajiMeaning
家では英語で話しています。Ie de wa eigo de hanashite imasu.We speak English at home.
日本語は保育園で覚えています。Nihongo wa hoikuen de oboete imasu.He's learning Japanese at nursery.
何か気になることがあれば教えてください。Nanika ki ni naru koto ga areba oshiete kudasai.Please tell me if anything concerns you.
私の日本語がまだ十分ではないので、Watashi no nihongo ga mada jūbun de wa nai node,My own Japanese isn't strong enough yet, so
大事なことは書いていただけると助かります。Daiji na koto wa kaite itadakeru to tasukarimasu.it would help if important things were written down.

Support at school and at the city office

If your child's Japanese is still developing, for example after moving to Japan, some cities and schools offer Japanese language support, nihongo shidō, through extra classes or visiting teachers. Some areas also have speech and language support classes, often called kotoba no kyōshitsu. Availability and names differ a great deal, so ask the school or the board of education.

Child health checks run by the city, nyūyōji kenshin, include questions about speech. If staff ask whether your child speaks yet, explain the languages at home; they can tell you whether a follow-up is useful.

JapaneseRomajiMeaning
日本語指導nihongo shidōJapanese language support at school
ことばの教室kotoba no kyōshitsuspeech and language support class
言葉の発達が少し心配です。Kotoba no hattatsu ga sukoshi shinpai desu.I'm a little worried about his speech development.
二つの言葉を使っているからでしょうか。Futatsu no kotoba o tsukatte iru kara deshō ka.Could it be because she uses two languages?

Answering other parents' questions

Other parents often ask curious questions: which language you speak at home, whether your child is bilingual, how you teach it. Most mean well. Short, friendly answers keep the conversation easy, and you can redirect if a question feels too personal.

You may hear hāfu (ハーフ), half, for children with one Japanese and one non-Japanese parent. It is widely used and usually not meant unkindly, but some families prefer daburu (double), mikkusu (mixed) or simply the child's name. If you prefer something else, say so lightly.

JapaneseRomajiMeaning
おうちでは何語で話してるんですか。Ouchi de wa nanigo de hanashiteru n desu ka.Parent: What language do you speak at home?
私とは英語、夫とは日本語です。Watashi to wa eigo, otto to wa nihongo desu.English with me, Japanese with my husband.
バイリンガルでいいですね。Bairingaru de ii desu ne.Parent: How nice that she's bilingual.
いえいえ、英語は今がんばっているところです。Ieie, eigo wa ima ganbatte iru tokoro desu.Oh no, she's still working on her English.

Common worries and mistakes

  • Expecting perfect balance. Most bilingual children have a stronger language, and it may change over time.
  • Correcting every mixed sentence. Many families simply repeat the sentence back correctly instead.
  • Dropping the home language when school starts. Many parents later wish they had kept a small daily routine.
  • Not telling the school. Teachers can only help if they know the family's language situation.
  • Neglecting your own Japanese. School notices, meetings and other parents will need it for years.

Practise the conversation with the teacher

Write a short explanation of your family's languages and send it to Mocchi with /correct, for example: 家では英語で話しています。日本語は学校で覚えています。何か気になることがあれば教えてください。 Mocchi makes it natural and polite, explains the grammar and keeps your family details in mind, so later practice fits your situation.

Then take it into a real conversation. The Parent–Teacher Conference mission in AI Sensei puts you in a meeting with your child's teacher; ask Haru-sensei to raise a question about your child's Japanese, and practise explaining your home language calmly and asking how the school can help.

Key points

A practical way to improve

Work on both sides of the family's languages. For your own Japanese, prepare a thirty-second explanation of your family's language situation for a teacher: which languages, who speaks what, and what you would like the school to know. Say it aloud until it is smooth. For your child's home language, pick one daily slot, such as bedtime reading, that is always in your language, and keep it for a month. Mocchi, Unihongo's study assistant, can check your explanation with /correct and remembers your family situation, so later practice and suggestions fit it.

FAQ

Frequently asked questions

Will my child's Japanese suffer if we speak another language at home?

Many children in Japan grow up speaking another language at home and become fluent in Japanese through nursery and school. Bilingual children may mix languages or have a smaller vocabulary in each language at first. If you are worried about your child's speech, talk to the staff at the city's child health check or a specialist.

How do I explain to a Japanese teacher that we speak another language at home?

A simple line works: ie de wa eigo o hanashite imasu, we speak English at home. You can add nihongo wa hoikuen to gakkō de oboete imasu, she learns Japanese at nursery and school, and ask the teacher to tell you if they notice any difficulty.

What can schools in Japan offer for children who need Japanese support?

Some public schools and cities offer Japanese language support, nihongo shidō, for children whose Japanese is still developing, and some areas have speech support classes, kotoba no kyōshitsu. What is available differs a lot by city and school, so ask the school or the board of education.

What do I say when people call my child hāfu?

Hāfu is a common Japanese word for a person with one Japanese and one non-Japanese parent. Many people use it without bad intent, while some families prefer other words or simply the child's name. If you prefer another way, you can say so gently; most people will be happy to follow your lead.