Curve I believe we are talking girls softball right? Being a former men's pitcher also and playing through the transition of a "soft"ball to the rock the girls play with today, maybe it is time to evolve equipment wise as the game has changed. I never had a face mask on my batting helmet when I played. Batting helmets weren't even required half the time. I've seen my daughters many times foul a ball into their face mask and was glad to see they had one.
Riding my daughters coat tails through rec/travel/College with the bats and balls these kids play with after 10u/ rec more safety could be addressed.
Most parents and coaches have seen a pitcher get drilled with line shot comebacker so why not protect her face? Reaction time
at times can be near impossible!
I wouldn't have a problem mandating face mask for pitchers till after 18s if nobody changes balls or bats.