This is like retiring just for the sake of retiring. Even though I can retire, I want to do it in style. Few more years of work and use the money to upgrade to a home with a really nice view, big windows etc. Then travel at least 3-4 times a year and when at home, enjoy sitting in the nice view room goofing around on the stock market. But I am also using my financial freedom to make sure that I like the job - the day I don’t like it, I will quit.
If somebody does want to retire early, they should maximize their IRA’s, 401K etc and then when they have no income, they can tap into it. Sure may be there is a penalty but hopefully much lower taxes.
The other things to take advantage of - if the company offers it is things like unqualified retirement plans and non-deductible Roth 401K. And don’t forget the HSA.
It is amazing how much effect compounding can have on the money that you didn’t pay to the IRS and keeps growing for you.