That 7% return goes down to 4 when you factor in taxes so the actual safe withdrawl rate is less than 1%
No mortgage, no marriage, no restaurants, no fancy gadgets, just a nice relaxing low cost of living life with friends who feel the same way.
Every once in a while I take some controlled investing risks, but hell if I would ever plunk 300k in a mutual fund and just safely assume everything will be fine when I check it 30 years from now.