You would think that creative types such as musicians could write their own exit from the stage as easily as they know when to finish a song.
Yet, whether it's the adrenaline rush that comes from playing to adoring fans or something else, we see more and more legacy acts staying on the road and performing into their 60s, 70s and beyond.
Paul Simon said he was done touring, but he's still performing live concerts.
Mick Jagger underwent heart surgery that was serious enough to give his fans pause, yet The Rolling Stones are touring this summer.
The show must go on ... until it doesn't.
When Peter Frampton found out a few years ago that he was diagnosed with the inflammatory muscle disease inclusion-body myositis, he kept it secret for as long as he could. But when the condition progressed, he decided it was time to head out on the road for a farewell tour.
That tour makes a couple of local stops in the coming week, with a Sunday night show at Bank of New Hampshire Pavilion on Lake Winnipesaukee in Gilford, New Hampshire, and a Tuesday night show at Rockland Hills Bank Pavilion in Boston. Jason Bonham's Led Zeppelin Evening supports both dates.
Frampton has said in interviews he wanted this tour to represent his entire career and other songs that have influenced him. A check of a recent setlist shows that's the case as he's doing his cover of Stevie Wonder's "Signed, Sealed, Delivered I'm Yours" and Hoagy Carmichael's "Georgia on My Mind", as well as Soundgarden's "Black Hole Sun" and The Beatles' "While My Guitar Gently Weeps."
But, don't fret Frampton fans. He's doing "Show Me the Way," "Baby, I Love Your Way" and "Do You Feel Like We Do?", too.
Whether you want to see Frampton come alive in the mountains of New Hampshire or the Boston waterfront, this is your best (and perhaps last) chance to see a living legend. Don't miss out.