When I was very little, I couldn't understand what the grown-ups were always talking about. I hadn't learned to speak properly yet.
I remember thinking back then: "Oh no, do I have to learn that awfull dificult language one day?", or something of that kind.
Looking back on it, it was kinda funny, since I work with languages now.
:-)
A childhood belief about speaking

others believed things like this
- i used to believe that cursive writing was a secret language that only grown-ups could understand.— nicole
- i used to believe all foriegn languages were greek if you learned greek you could speak them all
— pappy 6 27 35 - 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
- I can remember thinking that is I hid my eyes, and couldn't see anybody that they couldn't see me.Anon
- I used to believe, that I am able to speak every foreign language only by learning "their" alphabet.— matej