Women's hockey players might be suffering more concussions because they're not anticipating hits. Body checking is a minor penalty. Head contact is a double minor. Hits aren't common, so when they do get clobbered, they're often in a vulnerable position. Women don't talk about suicide passes because the defender isn't supposed to lay a hit. Then the checker is assessed a minor or double-minor penalty, and the checkee might suffer a concussion that sidelines her for a while.
True, but couldn't you argue the same would eventually happen to men's hockey?
So while men currently playing in pro leagues are taught from a young age to watch out for who is on the ice and to keep their head up in open ice, not deliver suicide passes etc., once those hits are penalized at the NHL level, that will filter down to the junior leagues and then the new generation 18 years down the line will have played hockey generally without the risk of open ice hits because these hits are now penalized. Those players would generally be in the same scenario female players currently find themselves in.
(small aside, but from my understanding, since there aren't as many female players playing hockey, haven't many of them played with boys up to a certain age at some point in time growing up, so in essence they would have been taught at least the basics of checking?)