Since I couldn't make any sense of what babies were "saying" when they were babling, I was convinced when I was a child that American babies must speak Chinese. Likewise I concluded that Chinese babies must speak English.
A childhood belief about foreign languages

others believed things like this
- I used to believe that my dog could speak English, but he just didn't feel like it.— Mariah
- My sister was convinced that when she grew up she was going to have puppies instead of babies— leohauoli
- I remember thinking that non-English speakers were much smarter because they could speak "so much faster." Anon
- I used to think everyone in the world knew and thought in English, but choose to speak different languages. Anon
- When I was a child I used to believe that the the babies were born from the seeds. — Rosimeire
- i though that the man and woman couldn't really have babies until marriage,lmao,what a stupid person i was— what a stupid