Spending money sparingly is like reducing weight in an automobile. A car will get better gas mileage, go faster, break less often, and be more responsive with less weight.
So it is with spending. When you spend less, you can retire earlier, your finances are more secure, you feel less pressure and stress, etc. You have more flexibility in the kinds of jobs you can take. Perhaps best of all, you end up accumulating less stuff, and less complicated things, which makes your life simpler.
Frugality doesn’t get the flashy press that consumerism does, but it’s a winning life strategy.
Retiring early is a single guy internet myth. If you have a family, forget it. If you have a health condition, forget it. If you don’t have low risk investments, forget it. In the US health care can reset your bank account in the blink of an eye which is why so many many people in tech work until Medicare kicks in. Early retirement with a family is at least 10 mil in cash. Better enjoy your job because you’ll be doing it for a long time like 98% of Americans.