Yep. The primary fault lies with the too-many people who abused the non-hostile system. "This is why we can't have nice things"--because trust is too costly in the societies where hostile architecture is prevalent.
I get that and agree. But why is the 'easy path' to leave the garbage even in conditions where there is a garbage can right there? Shame and motivation probably seem like the wrong tools here. It seems like something is lending it to us just not doing it the right way. It is like something in the architecture lends itself to people just ignoring the obvious way. My wife was telling me about a 'gum wall' at an amusement park. I immediately saw that as a way for the park to basically hack people to not throw their gum on the sidewalk. Basically a weird reward for keeping your gum and putting it on that wall. The architecture and mythos encouraged people to not do it.
