Depends on the perspective. I've had family who rolled their eyes when I'd tell them about seeing homeless people just walk up to trees and start pissing or drop their trousers and shit in trash cans, by bushes, on the sidewalk, etc. Invariably the ones who visit marvel at my relatively tame descriptions afterward. I'm sure the homeless find it quite a positive that they can relieve themselves without much interference, while I find it a net negative.