Hm.. well for example in the U.S. we have the Boy Scouts of America, this organization teaches boys and young men survival and general life skills. There's a spectrum of "off-grid" citizens. One one side of the spectrum, they still work and make under the table money, which in turn they use to buy some resources. On the other side of the spectrum there's citizens who have no communication with the general population. I guess the best way to see these examples would be on YouTube - searching for survivalist, off grid, and or self sufficiency.