The mask thread came to my notice because Neil Gaiman (love his writing) re-tweeted it.
Re affluence, we have had a lot of mask-wearing locally throughout, but the 1 person at the Waitrose fish counter or farm shop not wearing a mask has come across as decidedly posh (with a Range Rover outside etc)
Similarly, there is a high disdain for mask-wearing from Conservative MPs and Telegraph columnists.
So, anecdotally, affluence can go along with committed non-wearing of masks.
Then again, I'm very likely to see masks in Waitrose and a bit less likely in Aldi
@Quartz2208