When I was little I asked my mom whether American babies can understand other American babies, and Mexican babies can understand other Mexican babies. I thought babytalk was like adult languages, but only babies could understand it.
A childhood belief about foreign languages

others believed things like this
- when I was a kid I thought that babies come out of a belly-button.— Ana
- I thought baby oli was made from pressed babies.Anon
- I thought baby back ribs were from actual babiesAnon
- When I was little I thought that black babies who were breast fed got chocoate instead of white milk.— Susan
- I used to believe that babies were born out our bellybuttons.Anon
- I used to think when you married you had babies immediately!Anon