I'd rather just do a job i like to do until i am not able to do it anymore.
I know people who are old and do charity work, who i envy. They could as well be doing half time paid work, but for them work is work, it's not so much about money or early retirement. It's about the contentment of doing something useful together with others.
The ideal job however for me would be a mix of being a tutor, experimenting, reading up on new ideas or technologies and fixing problems, in a part time regime. The free time can then be spent on woodworking, gardening, sports, family. I haven't attained that exactly but i'm actually not super far off.
My point being, it does not have to be black and white, work vs retirement. You can do part time work that you like for a very long time and have fulfillment.
if your work defines you - great, keep on trucking. but having financial means to not have to work at early age (while you are still youngish and healthy) is probably one of the biggest goals any human on Earth can achieve