look on the good side brother, I am 27 and although my facial hair growth is even without patches, it's still not full.
but I'm surrounded by people who at your age started to experience hair loss, and by 25 they had to give up on it and shave what left they had short.
I've even seen early male pattern baldness kill aspiring acting careers by prematurely ageing guys beyond their typecast or experience.
meanwhile, I still have my full head of hair.
if that's all the facial hair you have AND you're experiencing male pattern baldness though, I can understand why you'd want to neck yourself.