I think it's because homeless shelters can only take so many people. ANd it doesn't provide you with ALL the things you need. And, it's for only a period of time you can stay there. So many homeless people choose to stay on the street then go to homeless shelters.
The best villain is probably Thanos. His motives are toward universal peace he just went about it wrong. World peace if sometihng that we want to attain. Studies have shown that their is enough food in the world to feed every one. That there is enough for every one. So killing half the population is not the answer. Thanos didn't see another way. And he was tired of seeing the universe deteriorate. So i think he is the best villain.
