Phant fact number 1:
Faun horns are made of keratin, just like fingernails. So when fauns want to hide their horns or pretend to be human they can file them away or cut them. It doesn’t hurt, and they’ll grow back, but, again, like fingernails, it’ll take a while.
Also, it’s just a real pain to try to file them away with an emery board, and nail clippers are never ever big enough for that, so they have to use a special kind of serrated blade sort of like a little bread knife. But for horns.
Cue: “Bet you didn’t know that" by Carter Vale