I also hope that some stigma of knowingly going out into the world while sick persists. Probably won’t, though.
If we get anything positive out of Covid, I hope it's as you say, the cult of soldiering on while infecting others has stopped.
There is no reason to force another human being to attend your lesson if they can pass your exam / go to work if they can deliver the same results somewhere else.
(I'm not advocating for forcing employers and school to give people flexibility through legislation, I'd just want to see a voluntary cultural shift)
For example, dumping fecal matter into streams was the norm (still the norm in many places today). Arguably it was and is still considered "an act of nature". However, the modern appetite for such behavior is considered unethical/immoral (unless left with no other options).
This story regarding personal and group health vs personal freedom and choice (or ignorance through accidents/neglect) repeats many times in history. Arguably each article of clothing was at one time a unique and major health/wellness conversation within the culture, and either won out or that clothing was lost to time. Similarly in home plumbing (a home without running water is considered immoral), contributing towards smoke/smog in cities is considered immoral, etc.
It seems likely that both masks, and accidentally getting a respiratory virus (including the cold/flu - given its death toll) could flip into the immoral bucket forever regardless of the impact to "personal freedoms". I'm not smart enough to know which way it will go or which way it should go.
Which ever way it ends up falling, I hope we come out with a healthier society for our bodies, but also for our psyches.
no seriously - I wish I were kidding!
Take a look here just how many works indicate no effect:
https://swprs.org/face-masks-evidence/
These may be cherry picked of course - no question there, still it is evidence that the science is not settled.
For a "home-run" review see the Cochrane review:
https://www.cochrane.org/CD006207/ARI_do-physical-measures-s...
Not even N95/P2 respirators were found to be effective.
It's interesting how things change.
"But it's just a flu"
The number of idiots who think the flu alone (let alone COVID) is a mild thing...