The claim
「Baby talk ("din-dins") delays language」
Verdict
Partly trueDistinguish two things: melodic, exaggerated "parentese" demonstrably helps language learning. What should fade over time is using only duplicated toddler words without full sentences.
Sources
PNAS · Proceedings of the National Academy of Sciences
Proceedings of the National Academy of Sciences. (2020). Parent coaching increases conversational turns and advances infant language development. Proceedings of the National Academy of Sciences, 117(7), 3484–3491. https://doi.org/10.1073/pnas.1921653117
Direct source · Peer-reviewed paper · checked 2026-08-02

