Nope public school.
Trust me....I feel the same way.
But girls softball and volleyball are very different from boys sports. That rule certainly doesnt carry over to football.
Plus we have a very competitive program, so for example the 7th grade girls softball team had 50 kids try out for 13 roster spots. Even if it isnt an official rule, which it is in the flyer sent home, try to argue that you deserved to not get cut.
We know a parent who inquired about "legality" of it and was told school is a right, acceptance onto a sports team is not.