I have so many things I'd like to do, except I'm so tired after work and the things I need to do to maintain my life that aren't called work for some strange reason. Provided I have the money to retire and afford the things I want to do, I will have plenty to keep myself busy for another lifetime.

If you can't find ways to keep busy in your retirement, that's on you. If you would rather spend that time working, that's fine, too, but society shouldn't expect that of us. If you can't afford to, that's a separate problem, and partly due to society, too.