With your people-working-together model, modern civilization would not be possible. There would just be too much friction in a world where every interaction and every boundary must be voluntary and previously agreed upon. It would sorta work fine for sparsely populated pre-modern times, like the XIX century American West [1], which I believe is the origin source for a lot of such fantasies.

[1] Except for the fact that the West rugged self-sufficiency was only possible because the pioneers could call in cavalry to exterminate groups of people who posed a threat they couldn't handle themselves.