First page for those still using less than 80ppp, post #9 almost two full months ago. But you do have a picture at least.
Even from a non emotianal logical point of view you can ask your friends and family for help in times of need. My mum wouldn't let me sleep on the street.
So humans weren't surviving before the invention of money? You can live without money and it's pretty easy to if you know how. Society on a large scale won't work of course(as we know it).