”Next time you go into Morrisons or Sainsbury's, stand at the entrance for a minute or two and watch how many people sail in there who sanitise neither their hands nor their trolley or basket. We don't know if masks do much but we do know that viruses live on hands and hard surfaces. Those people are potentially contaminating everything they touch in the shop.”

I commented in my post of 23 Oct 21 - 09:08 AM about precisely that, Steve. I use the trolley-sanitiser spray every time I enter Morrison’s or Tesco (we aren’t posh enough to have a Sainsbury’s here in The Backwoods), and I use the hand-sanitiser multiple times while I’m in there. But the C-19 virus’s main transmission method, if you believe ‘The Science’ (and, in the absence of any meaningful, verifiable information elsewhere, I do), is in aerosol so, AFAIC, mask-wearing makes complete sense, so I will continue to do it in all public spaces, whether I’m asked to or not - I regard it as respectful of others, and the civilised thing to do.

If others choose to do the other thing, that’s up to them - nothing I can do about it, and I’m not going to get into public shouting-matches with non-maskers. But, when the inevitable next wave arrives (and it’s cranking-up as we debate the issues here and now), our government of Blame-Shifters won’t be able to accuse me of being one of those whose dereliction to their duties to others has caused it.