No one, no even rock Gods can escape father time. Ed while still playing great, plays nothing like he did when I saw him in 79 and 80.
While this us mostly true...
Robert Plant - he hit dome major notes back in the day. It's not even fair now. He has zero chance of hitting those notes obviously but there is a reason why they won't tour. I font even think he can "get by" singing those songs and he knows it.
Few years ago, Robert Plant commented on The Eagles getting back together. He said they were probably bored. Henley specifically. Henley specifically. To which Henley replied, no, I just love it.
Saw the Eagles last year. Henley can hit all the notes same as in the 70s. Frey was a little apprehensive and careful with his singing. I would say he is still 75% of what he had.
Saw Sade, she can sing a song live with just a saxophone.
Saw fleetwood Mac and stevie, together and separate... Lindsey and stevie can still rip those lyrics up pretty good.
Bands I don't want to see because they are done:
Van Halen
Journey with philipino. While it's a great story. He is only, at times, a tad better than karaoke.
Not sure if steve perry can still sing. He hit some major notes too, like Plant. So who knows,