I usually shave my beard when I shave my head. I shave my head every 3 weeks or so or if I have something important the next day. I been seeing a younger gal for a few and she has never said anything.
I don't think beards make men look younger, quite the opposite.
Women make themselves up to look younger than they are, they instinctively know that men are attracted to younger women. Unfortunately for them, no matter what they do to make themselves look younger, real young girls always look better.
"In whatever state of mind I am in, my sexual happiness is conditional on the woman being young. Without the halo of youth, I consider that she is not even a woman."