A different slant.
I am in the North, and have spent time between 4 different towns this past year.
I noticed that mask wearing in general, whether prior or after July 19th seems to be taken up more strongly in areas with a higher income or smaller population.
In more depressed areas, and especially certain stores (off licences, Lidl, Iceland, Primark, etc), I noticed considerably less adherence to restrictions. In one large town, a fairly poor area with low levels of education and employment (but a 300,000 population) most shops digit even provide hand gel or any info relating to covid.
I haven't noticed a gender difference, although many do tend to be younger or in groups.
When shopping in less depressed areas, in Booths, Marks&Spencer, Lakeland and such, more people of all ages tended to wear masks.
What does this say? I dunno! Perhaps there is a class/income/educational divide? A fairly incendiary topic nonetheless.