[pochekailov]

I have to insist the formula is still correct in principle. Yes, there are many causes for homelessness. However, shall you magically fix all the problems you named, some people will have to remain on the streets if N_people > N_homes. Once N_people < N_homes, only then it is possible to fix the rest of the problems efficiently.

Regarding substance abuse for example: Shall I happen to lose my home, I would have to use the named substances to soothe a terrible shame and misery associated with my new status. I could only think of fighting my harmful addictions if I can see the way out. Currently though, with number of houses almost constant, if you manage to pull a homeless person out of the streets, there will be another person priced out of their home.