I used to believe that ponies were baby horses. And by "used to" I mean "until yesterday." I am 29. I am also an idiot.
A childhood belief about general

others believed things like this
- I used to think that ponies were young horses. I was embarrasingly old when I discovered the truth.— Al's view of the world
- When I was little I thought cows married horses, cows were all female and horses were all male. — Sheila
- Up until I was ten I believed that Yesterday was a day of the week— Kirsty
- i used to think that housten was a real person and not a place, im 16 and i found this out yesterday......!lol— jess p
- i used to belive that kidney beans were bean shaped things that grew in kidneys... untill yesterday — Jokey
- I used to believe anyone who disagreed with me was an idiot.— Catte