Obviously its an individual case by case decision. I retired at 51 and at 71 I have been back to work full time for 5 years. Last month I worked 13 days straight for a total of 176 hours. I am working in agronomy and we have a farmer customer that is 94 and still farms 400 acres. He bought a new planter last year and a new pickup this year. My idol. My MIL is 93 and still lives alone. Remodeled her kitchen last year. She gave up her license at 90 though. Probably won't buy another MH unless I get the right 6 numbers but we enjoy the one we have for a couple of short trips in the late summer/fall and try to go for 4 to 6 weeks in the winter. Hopefully I'll know when to quit however I drive a 25 ton truck daily hauling liquid and dry fertilizer so as long as I can do that I think I can handle the MH. Hope everyone can do it as long as the want to and feel comfortable and safe.