Now if someone wants to challenge whether or not that's legal is one thing, but the fact is that those rules exist for private and public universities.
Not to mention that if public universities are funded and run by the state, what's my tuition for? Can anyone walk into a classroom of the street and participate and receive credit? Are the dorms open to anyone who wants to walk in off the street? Can the homeless line up for lunch in the cafeterias since everything is funded by the state?