Rights are limited in public schools. And thats because a public school is not a sidewalk, or a park. So I have no problem with this ban, as long as ALL masks with a message are banned.
Before anyone disagrees, consider this. Should a mask - or a shirt - saying Mohammed is a True Prophet - be allowed? I think not. I would not want my child to be exposed to such a message. So yeah, keep political and religious slogans out of public schools.
Side note:
Im old enough to remember prayers in public schools. My teachers would say a brief, nondenominational prayer before every lunch. I kinda liked that. Does that contradict what I just said above? I guess so.
Yes, absolutely. Your 1st Amendment rights do not end at the school doors if what you are doing is not disruptive.
Read the article
“Rights are limited in public schools.”
Especially for Christians and conservatives.