If the students would simply stop raping people and dying of fentanyl overdoses which lead to their parents suing the school I'm sure Stanford would not have as many rules for what occurs on campus.
Or we can choose as a society to free Stanford of civil liability for the actions of people who aren't Stanford employees on its campus.
It is normal, typical, common, and expected for universities in the United States to completely prohibit alcohol consumption on campus.
These rules seem like an attempt to regulate on-campus activities to a degree much lower than in public institutions.