This is also about getting out of being "locked into" a larger overall economy run for the benefit of a few and creating local economies.

People with land and/or skills could create new economies by trading directly with each other with what they produce and opt out altogether..

In a way it is the final defence of a people against control and oppression or insane hyperinflation, but is more dificult to do if you are stuck in a city or additcted to modern technology.