Up until very recently, and I am now 22 years old, I always thought that the reason some people's lawns were a kind of teal or light bluish-green color rather than regular green was because they had their lawns painted so that they would stay a pretty color all year long. I was driving with my husband one day and saw a lawn like that and I actually said out loud, "I wonder why people paint their lawns?" and he said, "that's not paint, it's pesticide". And laughed.
A childhood belief about in the street

others believed things like this
- i used to believe that people with blue or green eyes saw that certain color— mellactica
- I used to believe that if you mixed red, blue, green, and yellow paint you'd get plaid!— Judith Ann
- I believed you had to color all the dinosaurs in coloring books green because all the dinosaurs WERE green.— Betty
- My visual representation of GOD was Mr Clean wearing a white robe... but his skin was a green/yellowish color.— Ryan Williams
- When I was little, I believed that my Dad worked in a factory where they painted peas green!— Hannah G.
- I thought that little tiny people changed the color of the stop lights.Anon