Well, this doesnt answer your question directly but it might help. This summer I read a study of 154 people who got covid. 106 always wore a mask, 6 never, 6 mostly never, and the rest wore a mask mostly all the time. So out of 154 sicks, 12 were no maskers.
Also, there was a marine study. Strick quarantine for half, masks too I think, lockdowned, vs the other half who were free. Virtually no diff in # cases bwt the two groups but with slightly less sick in the nonquarantine group.
Just asking though, on average though how many people seldom use mask? Not percent, hard number.
Well, this doesnt answer your question directly but it might help. This summer I read a study of 154 people who got covid. 106 always wore a mask, 6 never, 6 mostly never, and the rest wore a mask mostly all the time. So out of 154 sicks, 12 were no maskers.
Also, there was a marine study. Strick quarantine for half, masks too I think, lockdowned, vs the other half who were free. Virtually no diff in # cases bwt the two groups but with slightly less sick in the nonquarantine group.