I'm pretty sure that the person you reply to had a crazy lifestyle inflation and is now unable to live "simply" again with less than 20k$ a month. This is everything that MMM warns about.
Bay area have a problem trust-fund-baby mr mustache smug comments will never grasp: living around people who love crazy lifestyle inflation.
If people living around you keep paying more and more for expensive lifestyle, eventually you will be paying 5mil for a 2bd house in a so-so neighborhood. Because everyone already paid 7mil for the houses with 3bd.
Sure, you will pay 5-6k$ in rent (let's even say 8k$). But since you are making 25k$ a month after tax instead of 10k$, you are still coming ahead. Unless if you also need to buy a Tesla Model S like your cool neighbors.
No, I don't have that lifestyle. Except for house everything is paid off. Live relatively frugally except for eating out a few times a month (no expensive restaurants $12/person max)