I'm a cowboy. Hence the hustle. Even if I passed a corporate sniff test, could I put away 60% or more of my income every year? And why would I want to live in Atlanta or someplace like it? I hate commuting. That's a major reason I work from home in a small city and take whatever remote gigs I can wrangle.
Fwiw, this is definitely possible. I've saved about 80% of after-tax income for the last decade or so in SF. I don't consider my life very ascetic either; in fact, it's pretty awesome. If I wanted to cut down further for some reason, the number of wonderful free/cheap things you can do in popular cities is insane.
(Though bear in mind that I'm not yet in the phase of life where I have a kid, where this stuff gets a lot more complicated)