I thought there might be a law that you needed to be a certain age to buy a cup of coffee. I was almost suprised as a teenager that I could get away with it.
A childhood belief about criminals

others believed things like this
- I thought your loins were kidneys, and nobody corrected me until I was a teenagerAnon
- I thought you could get toffee from mixing tea and coffee.Anon
- until 12 yo i thought buying and drinking coffee was illegal when you were under 18:) — smarty
- I always refused to eat coffeecake because I thought it was made with coffee grounds. Anon
- I always thought there was a drinking age for coffee, because it was an adult drink like beer and wine.Anon
- in kindergarden i beleived that to be a teenager your name had to end with teen— eric