ASU Monday Nights, New Voices?

Okay, so my friends and I really want to go to the All Shook Up Monday Nights New Voices. We called the Duplex, and they said as long as we had a 21 or older chaperone, we should be fine. We found a chaperone, call to make reservations, and now they say you MUST be 21 to enter the club. Everyone says that they don't card, but I'm really afraid that this night be the one time that they DO card. My friends and I would NEVER think of drinking. What do you think we should do?

I'm just so confused, because a friend of mine that's underage went to the Little Women one last month, and they told her that as long as no one at her table orders alcohol she should be fine.