Can the elves in your setting grow facial hair? If not, then

no
no

>>54040164
Yes. It takes them a reeeeeeeaaaaaaaally long to grow them though, and they look like shit until they fully grow in, so for the most part elves don't bother with it. Only elven wizards, who can afford to seclude themselves long enough/don't give a shit about appearances in the first place, will typically go through the trouble of growing one.

>>54040164
Only in the sense that they have magic that changes their biology into something akin to a very-elven half-elf, which have enough human in them to be able to shape their facefuzz accordingly. If they do feel the need for a mustache or chin blanket, they prefer them to be neatly and closely trimmed.

As for envy, it's not really a factor. Scarves and other such items can handle warmth just as easily without needing to take weeks every time you need to put one on, and if they feel the passing curiosity to know what it's like to have bristles, they have magic n shit