You’re absolutely right. Six months ago I would have said something like that (and indeed many months before even when the CDC was spewing the bullshit that started all this anti mask stuff). I probably wouldn’t have hassled someone I didn’t know, just avoided them altogether.
However, the difference is, by wearing a mask where it might not strictly be necessary, I am choosing to inconvenience myself in a way that does not harm another person in any way. Choosing not to wear a mask where it is necessary puts other people in danger, and risks the overall epidemiological health of the society around you (and in my jurisdiction was also illegal). That’s quite a big difference in my opinion.
However, the difference is, by wearing a mask where it might not strictly be necessary, I am choosing to inconvenience myself in a way that does not harm another person in any way. Choosing not to wear a mask where it is necessary puts other people in danger, and risks the overall epidemiological health of the society around you (and in my jurisdiction was also illegal). That’s quite a big difference in my opinion.