It sounds like what the school is doing is perfectly legal.
This can be a lesson for her about fun little classes. If the teacher/professor does not share that view, there will be problems, as I learned from a fun little undergrad college film class that ate an appalling amount of my time. It turned out to be no fun at all.
Schools put up hurdles. You just keep jumping over the hurdles. A creepy teacher is just another hurdle. Get the damn A and move on.
She gets 10 points taken off her quarterly grade each time she doesn’t attend the art individual lesson.