Not as easy as it sounds. They're used to just getting fed by others. They aren't going to go and be productive, they'll just start taking from those who they see as having more than them. Ending welfare cold turkey would surely mean a massive spike in crime.
Yeah, not as easy as it sounds. I'm not sure that an increase in crime would be as significant as the children, elderly, and sick people that would die in droves if there was no public safety blanket.
If you boil it down, the reason that we, as a society, have welfare, is because it's not as fun going out to dinner when you have to pass starving kids to get there.