It's a fairly popular trend now, doing exactly what OP said. It usually involves buying a few acres and trying to be self-sufficient. Of course there's a subreddit for it https://www.reddit.com/r/homestead/
It has been popular for a long time. Internet has made concept exposure & social networking easier. My parents did it as hobby and crisis management; two generations further back my relatives were living it in earnest as norm for immigrants and descendants.