I used to believe you accumulated more money when making a purchase. It made perfect sense when you paid the cashier with a single bill (Ex. $20) and then received many bills in return. Since you had more bills than when you started, you were richer!
A childhood belief about money

others believed things like this
- I bbelived that the process of "making money" was taking a dollar bill and ironig it.Anon
- I used to believe that you had to "buy" your job. The more money you paid, the better the job. — Duke
- That everything was free. You paid for nothing, money was just to look nice.— Blasia M
- I used to think all money paid for goods at shops went to charity.— Tim
- I used to believe that on money, the treasurer of the United States really signed every bill prited her self.— Tiffany
- I used to believe that God was like a puppeteer, controlling every single movement we made. — Carrie C. in PA