So first I’m not criticizing as I’m a big believer in living below your means and taking mini-retirements and living in areas with lower cost of living. However the one problem I’ve always wrestled with is that this general idea presuppose low inflation and a world where you can always move someplace cheaper.
These aren’t axioms and they may not hold true. The danger is that someone looking to make these kinds of changes may perfectly estimate their financial needs today and determine they can do this, only to find themselves in a few years living in a very different world where their resources are vastly inadequate.
If someone is capable of earning now and is not miserable they should really bank that money before trying this kind of change. It sounds like that is probably what you are doing. But just for everyone else make sure you have a very significant cushion before you intentionally rob yourself of your highest potential earning years.