In the US uni system usually there are prepaid mandatory meal plans. The student can not afford food outside of their prepaid meal plan at the cafeteria.
So they get breakfast, lunch and dinner from mo-so?
If this is still good food and cheap enough I still feel this is totally okay.
It's not cheap, and it's usually pretty shitty food. It's just convenient when your next class is in 10 minutes.
Do you assume, just because people don't get meat in one cantina they are no longer allowed to eat meat by themselves?
No one is a vegetarian just because they are not getting it brought to them on a silver plate.
You do know that eating that much meat is a relatively new development right? A meat day should be the sane default not a vegetarian day in a cafeteria...