I'm really baffled by the amount of anti-social behavior. Case in point: trash. Where I live it's so common to litter that most people simply don't consider littering something wrong. The idea "if people didn't litter we wouldn't be living in a garbage dump" isn't even a part of the social discourse, and the solution is to keep raising taxes to fund more cleaning services. When I see this, it's very hard for me not to think that my tax money is wasted on people who will never respect it, and there's very little wrong with elitism. My second favorite is people having big-ass pavements but bravely deciding to walk on the cycling path because why not. Bonus points if it's a parent with a stroller.
On the benches specifically, I've noticed something interesting. I don't mind sitting on the ground, and when I cannot find a bench, I do exactly that. People often assume I must be homeless.