There's a chance people actually start using it to mark their political affiliation in public.

Mask wearing isn't really partisan enough to signal affiliation effectively. A substantial majority of all political leanings (https://www.nationalgeographic.com/history/2020/10/poll-incr...) report they always wear a mask.

Until there's a vaccine with some level of population coverage? I don't have a date, I don't feel it's a heavy burden to bear. If there's a significant downside to wearing a mask it's not obvious to me.