Sometimes I'm just lazy
and sometimes vain, and I spend about half the time clean-shaven and half bearded (same for long hair/short hair). Currently the beard is longer than it's ever been, and I'm starting to tug it. And think: 'By my beard!' I just watched The Hobbit trilogy again and felt a kinship to the Dwarfs. I keep thinking it's time to shave it off again, and look young again; but I'm getting into it!
And I freely admit to being sexist! I love women! They're much more fun.