NewCathargo
It gives people an option to "exit" shitty societies.
Unfortunately you'll find a good portion being spent on 20th century drugs, which suck immensely.
But if the people in power are willing to take that risk, then it might be a positive thing.
One glaring flaw is that humans are a social species and calculate rank and favors and grudges almost autonomously. Receiving your "life" from a government stooge is something of an embarrassment to men who've survived cold winters and starvation and dehydration. We like to be "equal" or "respectful" to a gift giver by having the possibility of giving back an equivalent gift.
So in a sense, you have to teach the homeless person abilities which, eventually, allow him/her to reciprocate a gift. Even if the gift was from the government.
Rehab doesn't address the part where you come back to normal life. And all the old aches and pains start up and nothing seems worthwhile and there's little work...
Teaching the homeless to be COMPETENT nomads is a better strategy. Otherwise they're at the mercy of public officials and contractors who only see them as a flesh to money machine.
Stop the ponzi scheme of housing costs.
Teach them skills general enough to plug into a variety of jobs and specific enough to survive alongside automation.
Giving a chronically homeless person a "home" doesn't make up for the completely shattered social network they have. And the shattered sense of civil conduct in a society which literally tossed them to the trash.
My melancholy tells me the above will never happen. Homelessness is a shadow industry where nobody gets punished for letting relapses happen. Therefore, nobody "owns" performance in getting the homeless into a housed state. In the industry, talking points are more valuable than actual "performance".