Do your part, return your cart: https://behavioralscientist.org/why-dont-people-return-their-shopping-carts-a-somewhat-scientific-investigation/
@kittylyst @epilepticrabbit My job in the US as a teenager was pretty much exclusively gathering up the carts at a Wal Mart. I think I would have liked it a LOT less if I were spending my shifts inside doing something else.
I still will go out of my way to return my cart to the right place, though (except in rare circumstances where I am alone with my kids and it would be a huge pain to leave them alone to drop it off but also a huge pain to get them out to take them with me).
In any case as long as the carts aren't blocking parking spots or sidewalks and they aren't in particular danger of blowing around dangerously in the wind I don't really judge other people for their cart behavior.