Hogpatrol,Money, luck and good planning can make it happen. Multiple marriages, multiple families make it not happen.
Three wives, three sets of kids and you'll probably work until you drop. I know more than a few that went down that path. I planned at age 20, I'd quit at 59 1/2 and I did. Same wife for 54 years who worked made it happen.
YMMV.
I agree, it takes good planning, sticking to your plan, and some good luck. I retired at age 60. We always lived way below our means, worked hard and saved all we could. I've been married 35 years. I'm 63 now, completely debt free, and enjoying life.