I know you are.
Again, it’s not really the other kids doing any teasing, it’s been more the “old school” coaches in my experience making the comments, and yes, there are high school coaches around here who forbid their players from wearing them (not quite sure how they get away with it but that’s another topic for a different day).
I think you’re failing to see that I’ve actually been agreeing with your general statement in your OP that adults shouldn’t shame kids whether it be pro face mask or no face mask. Please keep in mind (and this goes for both sides of the argument), just because you personally haven’t experienced it, doesn’t mean that others have not, as well.
I know you are agreeing
And that really sucks that HS coaches act that way. My DD is on a HS team where the ratio is again 50/50. Coach is very old school but to my knowledge doesn't care. And he shouldn't.
Maybe in the near future it will be a non-issue.
Good luck this spring!