chatterbox: How many of the 9 out of 10 mask wearers are wearing cloth masks or I’ll fitting surgical masks? That would probably reduce the number of effective mask wearers.
In the last month I've seen exactly two people wearing the surgical masks correctly. In Europe, where KN95s (as FFP2s) are mandatory, those are the strap-on shopping bags that cover nose and mouth, I've seen plenty of people wear them as chin-warmers. It must be pretty uncomfortable wearing them that way with the bottom half cutting into your throat, but they still manage it.