A couple of months ago, I had a nice conversation with a local restaurant owner. He's in his 70s, and mostly runs the place himself, doing the waiting and the cooking. His wife died a few years back, his kids are grown, and what else is he going to do? Watch tv? Move back to Trinidad? (He's lived in Minneapolis since the 1960s) Nah. He likes to cook, he has loyal customers due to his flatly amazing food, and he feels useful. It keeps him going. I'm sure if he "retired", he'd be dead not long after.