aren't we prepared to do a minimum effort on being safeR?
Surely the problem is preventing spread does not make things safer, being healthier makes it safer, covid sadly is a disease of the vulnerable, even more so than other respiratory viruses (which are often risky in the young as well) You reduce risk by getting antibodies, our vaccines aren't good enough at preventing cases, but they're good at helpiung but we'll still need to catch it. Just like we do other "common cold" viruses.
So I can't accept "safer" is undoubtedly preventing spread as you suggest. It was when so many were at high risk, now I'm not so convinced.
That's not to say your wear a mask argument is wrong, but it certainly needs to be looked at beyond delaying covid infection - if delaying covid infection is even useful - as you need to measure other impacts, will it also prevent routine boosting exposure to other respiratory viruses simply offsetting the delay in getting covid by making them worse etc.
I also agree that having lice is not normalised although I do think the cost of prevention shouldn't be that high, they're little more than an annoyance.
(I always wear a mask indoors outside the home, not because I think it's effective in preventing me from catching it, or because I think it's effective in preventing spread, but simply because I know some people are worried about un-masked people, and I want to ensure they don't lock themselves away.)
Personally, I'd really like to catch covid while I'm healthy, and am wondering where I can find a pox party. (Although given me and the rest of my household have taken no particular precautions at all, it's possible that we all had it without symptoms at some point.)