yes, I've heard about such cases too..
homeless people just have appeared outside of life "ship" but they're still people, and it's a great pity not all countries take care of them

for example, in my city there're no shelters or any houses for them, and in winter, when it's cold, they try to get some warmth inside of buildings, under or upper living stores.
Sometimes people are afraid to see them,a nd they call police.. but what can they do with them? nothing. just lead them outside..

and the most awful fact is that many homeless people aren't alcochol-addicted or drug-addicted people, they've just had some tragedies or betrays or cheatting that have led to loss of their houses.
how to begin a new life from 0?