@BrentInMasto @sand Well, a half visor does protect them in many cases. I don't think the #NHL lets players wear a cage, except in special circumstances, like their face is already injured.

Cages can lessen the player's peripheral vision which can arguably lead to more check related injuries.

And almost certainly, tradition, pride, etc play a role in being slow to adapt new safety standards (helmets weren't required until 1979, for example).