Instead of the redundant question (in some comments im seeing) of "will u give them your yard to camp in"?, why not open our home to the needy? It isnt unheard of. 
The homeless just need to know they are loved, worthy of creating change, moral values.... A job, a savings account, these basic things are needed to start over. Help someone out! Change someones life instead of judging them for not being as rich as u in your mansions. 
I suggest this because i have been there. People just need a fresh start and A Chance!