I went to the Leicester square theatre on Mon to see Michael McIntyre (400 capacity - sold out and every seat full).
The information on booking was requesting mask wearing and advising there would be temperature checks on arrival. The latter happened but I was astounded that there was no mention of masks on the tannoy inside (they were able to comment on not recording the show etc but not a gentle reminder that they request mask wearing!?), nor signs up anywhere and I was one of very few people who wore a mask - I would say it was about 85% of the packed theatre without them.
This has been the first time I've encountered this in a similar setting - most theatres for plays/musicals which I have been to (I have been out regularly) have encouraged mask wearing and the public were at least 75% wearing them. I was just so shocked that it was the opposite.
I also noticed that the majority of the people there were over 50 - does anyone think this is perhaps because they have had their boosters perhaps and aren't as concerned to wear masks?
Adding to my concern was a gentleman directly behind me with a cough who coughed multiple times throughout the show (made worse by his raucous laughing of course as it was a comedy show). Surely common decency would mean wearing a mask if you have a proper cough.. he kept having a coughing fit and then saying "oh dear" or "deary me"... 
I know that mask wearing is optional now, but you go down two flights of stairs to go into a basement theatre, in Winter, in central London when cases are rising - surely it's just common sense to wear a mask in these circumstances - it could not be more high risk, especially with people cheering and laughing loads? The strange thing was quite a few of the same people who were in the theatre mask-less then ended up leaving and heading to the tube at the same time as me and wearing masks on the tube!
Just wanted a rant and wondered if others were encountering this too and what they thought. I would not have attended the show if I had thought it would be majority maskless and it hasnt been my experience anywhere else (in central london, where I live) so just wondered if things are changing or if i was unlikely on this particular night...