Walking around Tokyo this week I'm still seeing mask rates of >95%. Lockdown ended about 2 weeks ago.
In America, mask-wearing carries a different set of social signals. It seems that not wearing a mask is perceived, by some, as a signal of one's virility and freedom.
The article makes this all pretty clear, but the comments here are getting bogged down in "but the data says masks are/aren't effective". The point is that the data doesn't matter. Mask-wearing is determined by social/political expectations and signaling, not by data.
If a study came out tomorrow that said mask-wearing reduces transmission by 95%, Trump still wouldn't wear one. Looking for a silver bullet study to prove a point either way is a waste of time at this juncture.
Apparently, asking Americans to show that they care about the health of another American via a very low-impact signal (the $10 it costs to get/make a mask, the minor inconvenience of wearing one) is too much.
How can a society solve any size of a problem when it cannot be bothered to put a piece of paper or cloth on their face for the possible benefit of another? If your political climate makes such a minor gesture controversial, how will you solve any meaningful issue where your factions disagree?
How do you get Americans to care about the health and welfare of other Americans?