Because you play for a hockey team that is still in the playoffs, of course!
Also, a cousin of mine who is a rancher in Northern Canada grows his beard in winter to keep his face warm riding the range in the cold months. Another, older man in my family developed a skin condition late in life. He grew a beard to hide the scars.
For what it's worth, the last time I grew a beard, it included a disturbing amount of grey hair!