The main reason why we might want to "feed everyone for free" is that there are strong indications it could improve the health of our society (more innovation,

The main reason why we might want to "feed everyone for free" is that there are strong indications it could improve the health of our society (more innovation, more self-directed time for individuals, more freedom) and reduce things we don't like (crime, homelessness, drug abuse). On top of that, some people just think it's the moral thing to do. No one asked to be born into a poor starving family or a corrupt fucked up world, but the only people around who could possibly stop this from happening to more people in the future are those of us pre-existing humans who set all the policy around here.