Really, so someone who is poor and lives in a studio or one bedroom apartment can take in any relative who is homeless? It's not practical for very long, and some who have tried that have been evicted by a landlord for allowing more people to live there. Also, there are a lot of people who don't have any family, or none they've heard from in years. People move, get divorced, don't have kids, etc. I don't think you have any understanding of the lives of people who are less fortunate than yourself. It's a type of ignorance.