I'm at the point in life where some grey hairs are popping up in my beard. Not many. I could probably count them on two hands.
The weird thing though is some of these buggers SPROUT. Like... night before = no grey hair there, next morning = wow... that three inch grey hair that is longer than the rest of the surrounding hairs that wasn't there last night is totes freakin' me out!
I will say though... the nice thing about having a beard is you don't have to worry so much about ear and/or nose hair. There's so much fur that it all just blends into itself.