It is good that someone open this theme seriously here on Steemit. Two extremes govern our behavior. On one side is greed and selfishness and on the other the need to be social and connected.
In my opinion anarchy is equilibrium of this two extremes. We have auto control our greed and selfish nature to achieve fair and productive social bonds.
So your example of peer to peer interactions between individuals in the shop is very good plain example to explain more elaborate description of anarchy I made in my above attempt.

This post deserve to be resteemed!

p.s. It's interesting how many times a reminiscences to my post @ I wrote few months ago come over and over on the surface, when I find post like yours here on Steemit. I be glad to hear a opinion on mentioned post from you too.