When I was a child, I thought the world had 10,000 bank accounts, i.e. they were all numbered 0000-9999. It came from noticing that my parents entered a four-digit number at the drive-thru ATM. I was very analytical and logical as a child, and still am.
A childhood belief about money

others believed things like this
- I used to believe the bank "scottish widows" was run by widows, and only gave bank accounts to widows.— Angelmouse
- We would drive by UNION BANK here in California and I would say "Onion bank!" My Mom would bust up laughing.— BINGO
- When I was a child, I used to believe that Catalonia was the unique part of land of the world.Anon
- When I was a child I used to believe that when I played video games my real world changed like the game. — J
- that as I grew up, my parents would "grown down," then I would be the Mom and Mom would be my child.Anon
- When I was a child I used to believe that my parents WERE superheroes at night.
Anon