We were there on xmas night 2 years ago and DH, DS dressed in collared polo shirts and khakis and me and my 2 sisters had xmas sweaters and nice pants. Most people were dressed similarly. No one was in shorts, but it was december. As we were heading to the elevator after our meal, a Japanese father, mother and toddler came up in the elevator and he was dressed in board shorts. The CM at the podium told him he could not dine there in his attire. Don't know why the CM on 2nd floor didn't say anything when he brought them up. He and his family left without incident. so, there do enforce a casual/nice attire dress code.
Connears