<p>This “Because society says so” is nonsense. As long as the hat isn’t distracting (large and too many decorations) and doesn’t block anyone’s view, then why should it matter? If the professor can say no hats, why couldn’t he say no open-toe shoes? No sweats? No gymwear? No jewelry? The reason why people wear hats:</p>
<p>1) To get away with not doing their hair or when they have a bad hair day
2) Because they want to.</p>
<p>What’s so bad about someone wearing a hat in the building because they want to? Who cares if society thinks it’s “polite” or shows “good manners”. All the examples you’ve given have a good meaning behind it being inpolite:</p>
<p>When you burp, people can smell it if they’re close to you, physical contact is a way to show friendliness and approachability, you can put dirt on a table if you put you shoes on it. What argument does “you shouldn’t wear a hat inside” has? If you’re bothered by someone wearing a hat inside, you need a hobby. NOW.</p>
<p>We are no longer in medieval times, not everyone’s in the military, and I don’t think anyone’s nobility in America. Back then, the tradition held meaning. Now, it’s an excuse for the uptight to nag.</p>