I made tens of fucking millions for multiple businesses and non profits so far in my career. The question should be, Why the fuck do I have to continue making money for other people for more than 40 years, when I barely get a cut? I don't fucking owe anyone, or anything more of my time, and that's what retirement means.

Honestly I'll probably get bored, and I can volunteer, or teach, or a number of other things that society needs, but doesn't have, because we're all wage slaves who are forced to work to death.