Earlier quoted context omitted.
Saw that at your neighboor's in Copenhagen, and after the first outrage of paying +50cts per drink, I understood that I was seeing a glimpse the future… If littering is equivalent to throwing money, you simply won't do it. Weird side-effect: homeless people might ask for your empty bottle and do the collection. Not sure how I feel about that though…
I am not a rich man but the homeless guy needs the 50 cents more than I do. And I rather have homeless people collect cans than making street music to be honest...
My kids are fascinated by them, and as long as they are not taking up too much space to make it impossible to pass through the street (and if they do, I'll happily pass through their "stage"), I am quite happy to have the streets livened up by some music too. Not all of it is good or to my taste, but it certainly beats empty streets, especially so during cold winter months.