Surely obvious, but there are people who will think that you make bad personal choices and need to make better ones. If those people also wield extraordinary power, well, it becomes less fun to find yourself suddenly having wrongthink.
Let's not forget the cadre of objectors who want us to wear a mask to protect their peace of mind, explicitly stating this goal as needful. Or those who vociferously demean anyone who objects for personal reasons (e.g. I tear up and start sneezing if I wear a typical cloth mask or sterile surgical mask for more than a few minutes, and have a sinus headache for several hours subsequent; I'm not the only one in this class).
Can you cite the transmission rate for asymptomatic carriers? The false positives for the various tests? The critical aspects of the efficacy of masking?
The easiest way to get infectious people to wear masks is to have everybody do it in high contact situations, there's no need to be fancy about who wears mask during a raging pandemic, so your other two questions don't really need answering.
(I mean inside places; I don't wear a mask outside either, as I am not going places where there are crowds outside)
It's very strange that people won't just wear a mask (with it over their mouth and nose). There might be some tiny fraction of people that have a real issue with it, but not anywhere the number of people that feel the need to loudly object to it.