Actually, I'm 57 and retired. I haven't gotten to that stage yet where I feel my playing is affected. I play and sing regularly in church so my chops and voice are pretty decent. I do find that my bandmates of the same approximate age, though, have slowed up a bit. The guitarist, mainly because of our layoff, is a little rusty, but not permanently. The sax guy, on the other hand, has really lost a lot of his voice and chops. His hearing is going too. I feel luck I can still play and sing almost everything by heart. Can't say much for lugging equipment around. Way too heavy (me) and out of shape.