Intersting seeing people's perspective's. I'm coming from a differnt POV than most here. I played my first gig two weeks before I turned 55 in 2019, got about 12 gigs in before the pandemic, and then went on pause. Two of our guys quit during the pandemic break and we finally filled those spots and are now rehearsing to get back out ASAP. So even after technically being in a gigging band for two years, I'm still just getting started.
Our gigs are generally four sets from 8:00 to midnight and that hasn't been a problem for me, but I know that I got a late start and that I won't be able to play forever. But I'm hoping to play for as long as I can and be able to enjoy it even more once I retire, for as long as I can make it last.
EDIT: I should also brag a little about my dad. He turns 94 in three weeks and still plays violin in a gigging band. They're just starting back up after being on pause during the pandemic and he had multiple medical issues in that time, so he definitely sees the end of his playing days coming. But, as of now, he's still going. I sure hope I got good genes from him.