I know I will get pushback here, but I think some people are giving actors too much of a pass. How many times are you allowed to 'call out' on your job without being spoken to. I know that an actor should not be performing if they do not feel well, but I can't help thinking that some people don't seem to feel that showing up is important.
I have been pretty fortunate in 60(!!!) years of theatregoing. I can probably list the performers who missed performances that I attended for the first 50 of those years. Even in the past 10, there have not been a lot, but there were a lot more than the prior 50.
Carol Channing missed one performance in her life, Ethel Merman was known for not missing performances...Hell, Yul Brynner died a few weeks after the final TKAI run, and he prided himself in never missing performances...and there are a lot of others.
If I remember correctly, more recently, Jonathan Groff and Daniel Radcliffe announced a couple of performances months in advance that they would not be appearing in, and neither ever missed a scheduled performance. They would be considered 'troopers' in the old days. On the other hand, in recent years, I have purchased tickets to see some other folks multiple times, and still never managed to see them.
I think that Covid is an obvious exception to this concern, as well as illness, but c'mon, some of these peole can't be sick that often.