I don't think the society is bright enough to accept voluntary payments to the government. Whenever I step out in the street, I see what kind of people are walking. Definitely not the charitable ones.
[...]Even from a security and medical perspective, it costs way way WAY less to take a homeless bum off the street and put him into a shack with a bit of food money, than it does to keep policing him to make sure he doesn't steal of cause issues, and to treat him for major medical issues he gets from living outside without food. I would think security and medical companies would implement this to lower their bottom line, but this is something that governments don't often realize, and thus ignore.
Shooting him & grinding him into dog food is more economically sound still. Profit.
Edit: If he's a bum, i doubt he's current on his private army bills, so don't worry about repercussions
Edit2: Medical companies are worried about bum's health costs? Socialized medicine much?