Ah, actually there are places where many people live like that. I know such places (one, namely republic of Artsakh, has become worse in the last couple of years due to partially being occupied by savage racist apes thinking it’s inside their “territorial integrity”).
It’s just that this requires a set of skills most don’t possess, having grown in big cities or places not too different from big cities for this purpose.
EDIT: About “level of decision” - nothing really prevents you from gaining the same. Just going to live “off the grid” with pretty much “on the grid” mindset is something leftists do more. Being prepared and having technical means to get to a doctor is important.