I have not noticed any difference (without counting exact numbers) between genders and masks in my area. I have noticed that older people seem to wear masks at a higher rate.
I am in both camps on masks. To the contention that people stay home when they do not feel good, I 100% disagree. Some obviously do. Working for 40 years, I saw many many people who would come to work sick, go to church sick, etc. People do not always or even close to always stay home when they are sick. I do not believe even people with covid who are supposed to stay home do, without enforcement. No way.
I am of the opinion we will (almost) all be exposed before this is over. I guess it depends on early vaccine, or more normal timeframe (if ever). If it spreads as easy as presumed. An early vaccine would mean attempts to slow it down would be more useful than the other case. The only question is sooner or later, based on our attempts to slow it down. There is value in slowing it down for the reasons that have always been stated such as not overwhelming hospitals, but I don't think we have a good chance of avoiding being exposed over the long haul. Just my opinion reading the science and other papers (though I do think tech has a fair chance of saving us). Based on that, it's easy for me to be in the life is a risk crowd as in the end, I will be exposed despite my best efforts. And really, life is a risk and there are endless very common threats that are far more likely to kill me. Nationwide, current mobility rates are almost half of Feb. That's not a huge difference in the sense that many many people are still out there in public. It is clear to me that our direction is going to be opening as a nation. There are almost zero states not on that path. Some more "aggressive" than others, but we are all seemingly headed that way.
However, I do wear a mask every time in public. I do this for the other reasons cited by SueDonJ. I was one of those who would not go into the office (when I wasn't working at home) if I was sick. I felt it was my responsibility to not infect others with whatever I had. I find that wearing a mask is no particular burden on me, it doesn't hurt me in any way, a little annoying but that's it. It's such a minor tiny little thing that it's nothing I would rebel or fight or argue about. It's about equivalent for me of the 'ol no shirts no shoes no service signs. Not a big deal. Therefore, out of concern for others, I wear a mask. Just like out of concern for others, I wear a shirt.