David Lee Roth is mentioned in this list of Old-Singers-Who-Should-Have-Retired-Years-Ago
I can’t open the link, but I’m sure Paul McCartney has to be on it. I saw him in 2016 and he was awesome, great show. The voice was a bit off in some songs but hearing him lately it’s like man, hang it up. Saw the stones at that same concert and Jagger has sounded “deeper” since the 80’s so it’s not real difference with him.
I saw GNR two years ago and Axl sounded pretty bad in a lot of songs.