Also totally agree. It works wonderfully for certain things. My boyscout troop was a great example. We all paid dues, and helped to raise extra with fund raisers and such, but some of us needed a lot more than others. Not everyone had a tent, or sleeping bag, and those were provided. The same goes for the more expensive trips, and other pieces of essential gear. My family also worked on the same system most of the time. Any good group of friends will often end up being somewhat communistic in nature, helping each other out when in need, if not by money then by other support mechanisms. Friend's moving? Go give him a hand! Got stabbed in the leg? I'll help put in a few stitches if you don't want to register at the doc's for the wound. Getting married? Help him calm down and see why he agreed to it in the first place. It really forms the basis of our society, to some extent. I imagine early tribes were much like this, except with a more calculating look on deciding when a tribal investment in time and resources wasn't worth making, and someone had to be left unhelped.