I’ve been living in Denmark so long I sometimes lose perspective. I forget what it’s like not to live in Denmark. Specifically, I forget that in most countries, adult men and women don’t want to walk around in an elf hat, even if it is Christmastime.
 
In Denmark, the red and white elf hat is part of any Christmas activity where alcohol is involved, and a few where when alcohol isn’t involved. Children occasionally wear elf hats, which are called nissehue in Danish.
But you’re more likely to see an elf hat on an adult, quite possibly on your boss or your professor or somebody else you’re supposed to respect.
Wearing an elf hat as a grown-up in Denmark is the way to show you’ve got a sense of humor about yourself, that you’re up for a party, that you see the fun in Christmas. Or, that you can see any fun in life at all after four weeks of nonstop grey skies and rain during Danish November.