Unless it is a beach community or a tropical island, both places where the norms tend to be different than in land-locked and less temperate locales, there is a rule that is either openly stated or known so well that it need not be announced:
“No Shoes. No Shirt. No Service.”
While you could conceivably go to a bar in Hawaii sans shirt (assuming male gender) and shoes, were you to try to do the same in, say, Iowa, you would probably be summarily asked to leave—and the asking might not be of the please-and-thank-you nature.
The Three No’s are essentially a rule of decorum that everyone knows. It is a situational rule. For example, even if one were to be flying from Kona to Honolulu you couldn’t board without wearing a shirt. This is not only predicated on the fact that odds are the person would not be a specimen that people would want to have to look at, there is also the fact that no one would knowingly want to sit in 24C after that person spent time in it.
At the present time there is extensively researched recommendations that people should wear face masks (ideally properly wear face masks, which means not having them below one’s nose as that—which seems to be a surprise to some people—is a feature that one uses to breathe, or wearing them around one’s neck, as though it is a bit of fashion flair on an elastic band). So maybe what we need is to add a fourth No to the three (although it would, admittedly, break up the assonance).
Yet there is tremendous push-back by some people on wearing of a mask as it seems to be some sort of admission that the coronavirus not only exists, but that it passes from person to person. Go figure.
During the period of lock-down in several states there were those who rose up and maintained their constitutional rights were being violated because they couldn’t get a haircut. Life, liberty and the pursuit of a razor cut.
Which brings me to a stunning state of affairs that is presently occurring. Some music promoters, who are finding that restrictions against crowds, are suing state governments. For example, one suit has been filed in Ohio against the doctor who had been running the state’s health department by festival organizers, whose ability to put on events is being impacted by such stipulations.
The basis for the suit? Violation of the plaintiffs’ First and Fourteenth Amendment rights. In case you’re wondering, the Fourteenth is the one about equal protection under the law.