The issue with any "support system" is that you not only render aid to those who truly need it, you attract those who "could do" for themselves if they have to but prefer not to if one of these options is available.
There are some adult males who choose to sleep in a tent during an Alaska winter, but not many females do, and no families would choose that for their children. If you checkout some of @Bobby Cole posts from a couple years ago, you can see some of what he did in years past with homeless.
What's wrong with housing illegals in Manzanar-like camps, as FDR did with Japanese-Americans in WW2? Hal