There should be stricter regulations,
There were. They were, for the most part, institutionalized and medicated until the 80s, when the lib-dem morons/idiots/cretins/scumbags sued and got them released on to the streets. The cities have progressively turned into sewers, since. NYC & SF are wonderful examples.
Tony Weiner and Chucky Schumer are, of course, hard core New Yorkers who would have been undergoing forced treatment almost anywhere else.