I just wanna say that while I dapped the op's post six years ago and I'm looking to finally dive into the side hustle/opening a business (preferably family owned) I still think it's possible to retire a millionaire working a 9 to 5.
I'm working alongside dudes who're married with a total household income north of six figures who take full advantage of stock options and their 401k and their wealth is

For the young dudes with no wives making that kinda bread they're

So depending on the field you go into and your knowledge of investing/real estate you could retire 30 to 40 years from now with a very, very nice retirement.