Originally posted by: Descartes
Personally, I'd be proud of the little man for his individuality.
Tell him that and he might get frightened and shave it 🙂 Of course this all depends on his intelligence and personality, but a little reverse pyschology never hurt. If he catches on and continues to grow it, call him pube-face and convince his friends to do the same.
edit: convincing his friends might involve bribery, but more importantly: facial hair is no big deal he'll eventually get around to shaving once his current girlfriend dumps him and he realizes all the girls in his grade think he is gross.