This is a good point, and partly what I meant. I also thought of working part time, and not going from 100% to 0% at work, but easing into retirement, based on enregy levels and interest, over several years, or decades even.
But this is not my view of what retirement is like for some (many?). Many people identify with their jobs, and when going from 100% to 0% they lose their identity. Some even die. It could be argued that this is by design, because people working and being taxed
