100% of people have picked up trash.
At school they tell everyone that they're special. They give trophies for participation, and for doing basic human duties. In middle school, I remember being given a reward because someone saw me throwing away a piece of trash. I was told that I was an "upstander, not a bystander" because I picked up some trash that wasn't mine. because I wouldn't just watch litter happen and not do anything about it. They tried to make me feel above average because I had an atom of motivation in me to use my opposable thumbs to move something about three feet into a trash can. They came up and gave me a free coupon for ice cream or something and a colorful sheet of paper with my name hurriedly misspelled on it. Guess where it went? The trash can.
Parents and teachers try so hard to make their children feel special, that their children believe it. What good does it do? It only makes the realization that they're not special even harder. It makes people feel like they are the protagonists in the universe, when they need to eventually accept the fact that they mean nothing, just like all the rest of mankind. Once we accept that, things are easier.