All these examples of “living” involve being in a single location while being completely sedentary, something I would say most people would get very tired of quickly.
To your point directly, it is totally possible to "live" in a single location. Nobody said anything about being sedentary. There are many ways to make oneself useful every day. But if you live in New Mexico, maybe fresh salmon from the grocery store isn't an option society needs. These things are nice, not necessary, and it wasn't that long ago that we all got along fine without all the options required to feed every hedonistic impulse we have.
On mobile. Writing is probably fucked up. Sue me.