and there is the truth....."most people"....not just disc golfers, but most "people". Pro disc golfers are no different than other people. Look around your community, how many people social distance and wear masks? There are states where masks are mandatory and yet there are still people that won't wear them. It would be nice to see them wear masks since they are appearing in a video....but, it's their choice - and did the state they played in make masks mandatory?
I get the frustration....I see it in my state of Arizona where masks are not mandatory. I don't wear my mask playing disc golf, but I do social distance. In the stores, I wear a mask. For disc golf, a mask restricts my breathing and fogs my glasses; so I opt to social distance as best as I can.
Disclaimer: I have ordered a different mask to try and see if that improves my breathing and reduces the fogging of my glasses.