Well, the problem is mostly that some significant number of voters hate the idea that their money is being spent on keeping someone else alive and well, so the

Well, the problem is mostly that some significant number of voters hate the idea that their money is being spent on keeping someone else alive and well, so the Government is constantly changing who gets it and how much. The problem is that when you're living off someone else's goodwill - even if that someone is the Government - you're entirely dependent on them, and they can put you through whatever hardship they please.