I don't have one but surely the covering up of the face is the best part of them? It's also the reason why they will end up being discouraged because the authorities don't like it haha
I remember when the cctv went up on my estate back in the early 90s! (whole estate got those big posts with cams on, every single street covered). We got taught from a young age to always cover our face... although after a while everyone gave up and just accepted that they were going to be recorded everywhere they go.
I wont buy a facemask because of corona but I might well buy one to cover my face. I have no reason to cover my face but the fact I have been getting watched and recorded since the age of 6/7 has left me a little conscious about it all.....