It wouldn't surprise me if mask wearing did become pretty common place after this. I think some people view it as such a minor inconvenience that it would be worth it to wear during flu season.
While I'd like that as well (I haven't had a cold since January), there's so much pressure against it in the middle of the pandemic I can't help but think won't last when the pandemic ends.
If it's sporadic for someone who thinks they might be sick, I can understand, but I'm already worried about unintended consequences of so many people giving their immune systems a vacation, and the longer this goes on, the more likely it is that a Covid mutation that bypasses masks takes hold. We've never fought a disease like this on this scale, so these are pretty big open questions that I'm surprised I'm not hearing more about.
