My first job at 15.5yo was the grocery store. I bagged and got carts for work when bagging could be plastic (newer), paper (common), or a combo of both (old people, usually). If you don't return your cart, fuck you! Now I live a few blocks from the same grocery store and return that shit to the inside of the store, grabbing spares sometimes if they're just sitting around in the way. It used to surprise me when someone didn't return it, then the last couple decades happened and it makes more sense. There are just some people who want to be a part of society and others who want to benefit from it while not contributing to it.