I used to believe that you could create money (that you didn't previously have) by writing a check.
A childhood belief about money

you weren't the only one
55 of you believed this
- I used to believe that as long as there were checks in the checkbook, there was money in the bank.— Michelle
- I used to think that money from ATM machines were free :p— qwerty
- I used to believe that with a credit card, you could get anything you wanted for free.— Anonymous
- I used to believe that checks and credit cards allowed you to get anything you wanted with out paying for it. — Diamond
- I used to belive that if you went up to an ATM it would just give you money out that is not your own money.Anon
- When I was little, I believed that banks were places where anyone could go in and take some money for free. Anon