> But that means you don’t get the latest iPhone, cook basic foods at home and rarely eat out, repair your own appliances, and so on.
You can save quite a bit of money by living this way even in high CoL areas. That's how a lot of people without high incomes in those areas get by - by getting handy and resourceful. Through that, they often develop/discover talents and skills, and save a lot of expenses.
For my part, I've done all my own landscaping, installed/repaired/maintained my home appliances, built my kitchen cabinetry and other furniture, etc. I estimate these efforts have saved me at least 100k over the years, probably much more.
I don't think it's nearly enough to offset the housing, education and healthcare unaffordability crises, but it's a way in which regular workers get by.
However, the call-Uber/Doordash/Handyman for everything lifestyle isn't something that works unless you are highly paid and have no kids.