In a future with space magic, fusion powered rifles, hover bikes, overgrown smurf people, and dinkle-bots...what you question is how beards would work with helmets. These helmets you speak of are infused with space age testosterone powered circuitry that was the last great military achievement of mankind before the collapse. They are snag proof and tight fitting and also feature an artificial intelligence feminine voiced program that complements guardians on their fighting prowess and beards regularly to boost guardian morale.

.... I like it. "Man, those cabal have us pinned down!"- "I know! It's not looking good man. We may not make it!" - "Guardian, I just thought you should know that your beard is the sexiest thing I can think of and I'm a super powered AI" (cabal screaming in pain and maniacal Titan laughter)

Omg YES!

I feel like you enjoyed that cuz your a Titan.

That is highly possible....