I'm not sure what degree of freedom you're supposing they have, but not everyone is able to uproot their life on some survivalist kick. Plenty of people have their roots and networks where they are, so "just don't live there" isn't a universally applicable "fix".
I've been fortunate enough to be able to move to a place ideally suited to my needs (and as I don't need much I suppose I could move on relatively short notice if needed) but even I recognize that not everyone can afford to follow suit.