I used to beleive that when plaing volleyball, you can only serve from one spot. Later did I find out that you can serve from anywhere on the back line. oops.
A childhood belief about sport

others believed things like this
- When I was young I thought that a parking spot was a spot like a polka dot and not a space for a car.— Mina Tova
- I used to think volleyball was actually called "ball-y ball"Anon
- Follow me and I will make you vicious old men.....OOPS that was really fishers of men— oddsox
- I used to beleive that if you point at a graveyard, it would point back!!(whatever that meant)— scary ashley
- I used to believe that when I went to the mountain I would find an ancient monster or find some treasure— Yazer Solorzano
- I used to believe my dad could honk the car horn by pushing on a mysterious spot on the roof of the car.— sarah b