One of the privileges of living in a democracy is you can get selected to serve on a jury. I avoided doing so in the past because I lived more than 50 km from the court. Then I got summoned to serve in a closer court. First time we were dismissed as not needed that day. Today I was summoned again and the trial could last 2 weeks. That would be inconvenient. There are several reasons to be excused such as being on holiday, sick, or other such things. Today I found another way to be excused...I said I refused to wear a mask in court. They accepted that excuse so I am a free man again.
Recently you couldn't go in a court if you weren't vaccinated but the staff there all wear masks. The staff at the Apple Store all wear masks. People really are sheep about some of the crap imposed on us. Everyone wore a mask lining up to get registered at the court. After checking your photo ID and scanning your juror number they issued you with a N95 mask. I enjoyed walking past the long line of potential jurors all wearing masks.
In Oregon you can be excused from jury duty if you are over 70 years of age.
How do non mask wearers circumvent situations where masks are required? In the U.S. masks are mandated in all healthcare settings including places like pharmacies, optometrists, audiologists, and dental offices (except while the dentist, their assistant or hygienist are working in your mouth). There are some situations which cannot always be avoided where masks are required.
Mask mandates can be at the federal, state, county, city, and proprietor level all of which have the legal authority to mandate and enforce wearing them. That is unless your name is Matt and you live in Thunder Bay, Ontario, Canada. In that case you can refuse and be issued a no trespass order by police who Matt maintains do not have the legal authority to do this. Apparently, you can also threaten the police there with physical harm and get away with it should they attempt to arrest you. Oh well, some people hold that laws are meant to be broken. Those same people are who scream the loudest when they are arrested.