I think this is a good discussion point because there is no overall right answer. By some calculations my wife & I are FI. She is retiring, well today, sort of. I went ot her school and at the assembly her class sang farewell songs She has been teaching for 20+ years and is 58. She loves teaching but was getting burned out. (Loves! teaching, her class test results are excellent, we have visited schools in foreign countries on vacation, when she taught kindergarten Saturdays were for hitting yard sales to get books & things for her class...) She already has three offers to sub, lead workshops, & coordinate student teachers. I suspect she will stay busy. But there was a critical point in the last couple years when she would come home tired & burned out and it dawned on her that she didn't *have*to work, we were no longer 30 or 40, the house was paid off, one son has left home and other one is a junior in high school. It was having FI that allowed us to do this. Oh, and now she can spend more time with our grandchild (and another on the way) from older son.
Now I like my job, I am not getting burned out but I can easily imagine enjoying retirement even more. So my retirement is more of a calculation based on how much more than the basic level we want and issues like younger son's college costs and maybe a major market downturn. Since I can choose when I retire I can maybe avoid a 1929 retirement. I expect if my wife's retirement goes will it may accelerate my own. That, and I just talked to a senior person in our office who thinks there may be buyouts in the near future. I would probably take one not so much for the money but more because its less fun to work in a place after downsizing. I would hate to see my assistant, who I recruited, get cut and then 6 months later I retire. I'd just as soon go now.
Long & rambling but I think even the most ardent ERs really honor the point of being able to do what you want and acknowledging that for some people that includes working. Why does Bill Gates or Warren Buffett work? I think they want to. (OK, maybe Gates has an inner saddistic life that likes inflicting pain on programers & users....oh, sorry, wrong thread) My dad had a blue collar job but he really liked to work, I think he would have lived longer if he kept working.