I can breath weed smell in many, many Dutch cities, and even though they do have drug problems (and related gang issues) I have never encountered a bathroom ful

I can breath weed smell in many, many Dutch cities, and even though they do have drug problems (and related gang issues) I have never encountered a bathroom full of syringes, nor found 2 people lying on the floor with needles stuck in their arms on the exit of a central station like I've seen in Market St. Muni/BART. Perhaps there is more to it in America's society that create problems of despair than just the drugs...