According to what I read about our history, the US tried to get rid of tipping early on, in an effort to have a more egalitarian society, but people couldn't stand the idea.

As far as I have ever seen, most people don't mind sorting the trash, the different bins just aren't there.

In places where there is a single recycling can, I can't remember anyone throwing recycling into the trash can, with righteous indignation, muttering about the extra cost to their personal time.