The comments that old stagers supposedly made is only hearsay.
the opinion that they were poor and the young ones good is only one persons opinion, another person may have thought differently.
I have come across some poor young perfrmers and poor old ones, and good ones in both categories.
most young performers I have come across are eager to learn and improve,    what pissed me off recently was that i had to ask an older performer to stop talking and also had to upbraid an old mc for his incessant loud wittering, then there are the older mcs who give a piss poor introduction to performers.
a few of these old ones need to pull their socks up