It's not an NCAA rule. It's a rule from the colleges themselves. I drink beer in the suites. We have a little fridge stocked before everygame and refreshed when it get's low. They just want to keep it out of reach of the students due to liability issues.
Example.
If a student get's drunk at the game inside the gates. Then kills someone in a car wreck and that student is not legal to drink and he has been drinking inside the stadium. Jack Trice Stadium my become "insert dead kids parents name" stadium. Liability issues
Example.
If a student get's drunk at the game inside the gates. Then kills someone in a car wreck and that student is not legal to drink and he has been drinking inside the stadium. Jack Trice Stadium my become "insert dead kids parents name" stadium. Liability issues