This and stuff like it is an attempt to keep homeless people from sleeping on park benches. Granted, when I am walking through a park, I do not want to see vagrants sleeping there but stuff like this seems elitist and cruel. In my observation, there are two major societal catalysts for homelessness: drug abuse, and asshole NIMBYs. I think NIMBYs is a relatively solve-able problem but drug abuse is not. I still think we should solve the simple problems first then tackle the daunting ones. The NIMBY problem is that while most people have no problem with budling lower income housing (in the right circumstances, land lords can still make a profit too) but middle and upper class boomers (and other generations) who have 80% of their net worth in their house do not want lower income housing to move next door to their neighborhood because that will lower their property values. Thus, these busy bodies will harass planning and zoning boards to make sure any new construction near their homes are for more upper class housing.
They also might be opposed to the inevitable crime spike that often comes hand in hand lower income housing development.