> EU/US just think that's dumb thing to teach because "eww collectivism" and even the weird conservative people going on about rules usually don't even want that.

It's interesting to me to call out conservatives here as they are typically the ones touting community responsibilities through social norms. Despite the socialism (non-derogotarily) lean of the left, I would still consider them more individualistic, socially.

The two groups differ in their enforcement of collectivism (socially or legally) not their aversion/inclination to it. We are a social species, after all.

I think you'd find less graffiti in a rural bathroom than a large city bathroom.