This. The old mental hospitals - descendants of the insane asylums - were rightly criticized for some incidents of brutality, etc. However, the pendulum swung the other way with psychs trying to keep the mentally ill completely re-integrated into society while giving meds and treatment on an outpatient basis. However, this resulted in the mentally ill missing treatment (often because of the illness), and becoming a danger to themselves and others. During a couple stints of doing volunteer work with the homeless, there seemed to be 2 major classes of homeless; those such as families or others temporarily homeless for a while due to hard luck/economy/etc and a larger group that was more or less permanently homeless since their mental conditions either directly or indirectly through caused addictions prevented them from holding down jobs.