Two books and a pen on a wooden table, representing a choice between two languages

English-First or Mother Tongue-First? How Bilingual Homes Should Sequence Reading

Every grandparent in the house has an opinion on this one. One side wants Kannada or Bengali or Marathi first, so the child "doesn't forget where they're from." The other wants English from day one, worried that starting with the mother tongue will leave the child behind once school starts. You're the one actually deciding what books to read at bedtime, and it's reasonable to want more than family opinion to go on.

The core finding: starting with one language first doesn't leave a child behind in reading

Researchers Kaja Jasińska and Laura-Ann Petitto, working at the University of Toronto's BOLD (Brain Organization for Language and Literacy Development) Laboratory, compared three groups of children learning to read: monolinguals, "simultaneous" bilinguals exposed to two languages from birth, and "sequential" bilinguals who were introduced to a second language around age 5 or 6, typically when school started. Being bilingual didn't slow children down or confuse them — bilingual children read as well as, and on some measures slightly better than, monolingual children. Importantly for the sequencing question, the sequential bilinguals — the ones who got one language first and a second one later — had caught up fully with their peers and showed no reading disadvantage by fourth grade.

The bigger picture: it's not really about which language goes first

This connects to an older, well-established idea in bilingual education, first laid out by linguist Jim Cummins: literacy-related skills — understanding how stories are structured, hearing the sounds inside words, grasping what a sentence is — sit on a "common underlying proficiency" shared across languages, rather than being rebuilt from scratch each time. A child who's built this foundation solidly in their mother tongue carries much of it over when English literacy starts at school, and vice versa. Jasińska and Petitto's work adds a useful, specific detail here: the two bilingual groups didn't even get there the same way. For simultaneous bilinguals, phonological awareness — noticing and playing with sounds — predicted reading success most strongly. For sequential bilinguals, vocabulary size mattered more. Different paths, similar destination.

Put together, this suggests the real question isn't "English first or mother tongue first" — it's "how solid is the foundation in whichever one comes first." A rich, well-developed mother tongue gives a child plenty to transfer when English literacy begins; a confident start in English doesn't block the mother tongue from developing alongside it later, either.

Where it's genuinely uncertain

This research was done with English–French bilingual children in Canada — a two-language setting. Many Indian households are doing this with three languages at once (a mother tongue, Hindi, and English), often across two or three scripts, and there isn't nearly as much dedicated research on trilingual reading development in India specifically. It's reasonable to expect the same underlying-skills logic to apply, but the honest answer is that the exact mechanics of three-language households haven't been studied nearly as thoroughly as two-language ones.

What this means this week

  • Don't switch to English-only out of worry that it's "more efficient." The research doesn't support one language having an inherent reading advantage over another at this stage.
  • Read aloud tonight in whichever language you're most fluent and expressive in — richness and comfort in that moment matter more than which language it happens to be.
  • If your child mixes words from two languages mid-sentence, that's ordinary code-mixing, not confusion. It settles down on its own as vocabulary grows in both.
  • When books exist in both your mother tongue and English, let your child move between them rather than treating one as the "real" book and the other as supplementary.

Sources

Jasińska, K. K., & Petitto, L. A. University of Toronto BOLD Laboratory. Research on simultaneous and sequential bilingual children's reading development, as summarised in Bold Science, "How Do Bilingual Children Learn to Read?"

Cummins, J. (1981). The role of primary language development in promoting educational success for language minority students. In Schooling and Language Minority Students: A Theoretical Framework. California State Department of Education.

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