I'm not sure which particular aspect of taxation you're thinking of. But generally there are lots of swings and roundabouts in life, so part of your taxes may go to someone who has screwed up their life, but part of someone else's taxes may come to you in other ways and/or at other times. We all go through bad patches - illness, accident, nervous breakdown, or just getting old - and when that happens other people's taxes help us out. Also, people don't stayed "screwed up" forever - hopefully, the benefit they receive helps them straighten their life out, and they then themselves start to pay taxes which go to help others suffering misfortune. It's natural for us not to enjoy paying taxes, and nobody is saying that the system is perfect, but a society where taxation did not exist would be so harsh and individualistic that it would hardly be a society at all.