Actually, for many of those people, it is their life goal. I see the exact same people, day after day after day on my commute to and from work, hold the exact same sign. They have no intention of working. None. Society should not condone nor enable that in any way. If someone is demonstrably unable to care for themselves due to a verifiable mental illness, that's one thing, but you can't tell me that all those drug addicts at the park and elsewhere are mentally incapacitated; that's just a cover.