In Brazil, "café da manhã" (morning coffee) is the term for breakfast, but it's often shortened to just "café."
There was a mobile blood donation set up during Covid and I asked the group chat if it was okay to have coffee before donating, and the response was, "Yes, you should definitely be well-fed before donating blood."
I was taught, as a child in the '70s and '80s, that only women could wear hats at meals and in church. Later, in the military, it's a rule while in uniform that hats must be worn outdoors and may not be worn indoors unless you are armed.
It still strikes me as very unprofessional when police leave their headwear in the vehicle, and a little "off" when people are eating indoors with hats on.
Not to mention all the hat etiquette in Western countries up until the '60s: https://youtu.be/zePIkXSB1kA
This was the intern using grid north instead of magnetic north, maybe?
One neighborhood in my town has streets at just the perfect angle for the winter sun to line up in the afternoon.
Maybe everything depends on whatever rule of thumb some 18th century surveyor heard was in style.
Some people can just wear anything. Flannel shirt, leather pants and Chuck Taylors? If you're a scruffy musician, no one bats an eye. If I, on the other hand, wear anything other than a baseball cap, everyone loses their minds.