I think if you're going to get mad at someone for not wearing an optional mask, you would also have to be mad about a thousand other things that aren't illegal but are harmful to others and people do anyway. Like nearly everything smokers do, to use an earlier person's example. I'm not saying I agree with it, but it seems selective. Literally every single person I have seen wearing a mask so far is doing so in a way that is making things worse either for themselves or others, so you've got to wonder if it's even a good thing. None of the testing or articles on mask use I have read address this, so I assume they are comparing textbook use to non-use which is unrealistic.
It's kind of like not putting your phone on airplane mode during a flight - if it were an actual problem with a significant risk, they would make it law or mandatory. Masks seem to be mandatory in all the higher risk areas like hospitals, medical diagnostic facilities, and care homes.
If you want to get mad at something, get mad at the people wearing gloves. They think it's protecting them or others, they get a false sense of security so they become careless, and they definitely aren't washing their hands. Doesn't really matter though, nothing would be done about it anyway.
I don't really care either way to be honest, you have people either choosing not to wear masks (when not mandatory) or people wearing masks in such a way that makes it worse for themselves and/or those around them in most cases. Doesn't really matter. Places where masks are mandatory like hospitals are also forcing people to use them properly and kicking them out if they aren't, which is reasonable.
So few people have followed the 'rules' since the beginning that the only thing that probably made an actual difference was the closing down of most businesses to limit contact/transmission. I was at Safeway the other day and this lady in a mask and gloves was pushing her cart saying "outta my way, outta my way" as she rolled along
At least it's bringing some entertainment.