When I was about 9 or so, my mother was shopping for a used car, at that time I believed that the more miles a vehicle had the further it would go. I found a car that had 60,000 miles on it and desperately tried convincing my mom to buy the car, when I explained to her that if she got the car with only 7,000 miles she wouldn't be able to go 60,000 miles unless she bought the car that had 60,000 miles she laughed and later explained to me the "truth behind car milage". :)
A childhood belief about cars

others believed things like this
- When I was 6 I used to believe my parents were watching me at school on TV. It explained a lot at the time!— opinionata
- i could swear eleventeen was a number for the longest time -- it still sounds pretty convincing.— erin
- I didn't understand about boiled eggs until my Mum explained I wasn't supposed to eat the shell as well.— Chris
- i beleived that when someone bought a new house, they would swap with the person they bought it from— c
- For some reason I thought any 4X4 vehicle would pull a wheelie when switched into 2 wheel drive.— Richard Davies
- My mother told me when i was 5 that Santa wouldn't come if i kept sucking my thumb. — Traumatized