Living off the Grid & Ancient Civilizations

We've been discussing ancient civilizations in Social Studies. Not so much civilizations like the Mayans or other such ones, but more how small communities began to form. How did they come together, how did they decide where to settle and build? What resources did they need to utilize and develop? How could they provide a thriving, successful and safe community? I saw this on Facebook and though it doesn't directly apply, it was interesting to see who even today, there are people who aim to live simple lives. We watched it together and Mckenzie thought it might be scary to live without electricity, especially if you had to walk across the forest in the middle of the night to go to the bathroom.