It’s Hereditary
Oh, poor William! He was the only male in his entire family that couldn’t grow a mustache. It was really bad because it was a family tradition to grow one’s mustache out. He was determined to continue the family’s legacy, so this was his idea.
What? Just What?
You know, I have a few ideas for some wording that might rescue this disaster. Firstly correct the spelling, and then completely rewrite the sentence.