I guess some folks just have more stamina.
Every couple of years, the Rolling Stones were asked if they think they'd be able to keep at this once Mick was 30, 40, etc.
The 1981 Stones tour was billed as the final tour.
That means they've been doing "final tours" longer than they did regular tours. They no longer call them the final tour, but Charlie Watts wants out of the rat race.