Weird, I was in New York just recently and went to four such places. Simply showed my Swedish ID card to the entrance guards and they didn't even raise an eyebrow (I had just turned 21). In fact, it was perfectly accepted for all purposes other than entering the country.
Maybe it would've been a different Story in California? I honestly don't know.
Last edited by Crazydre; Dec 3, 2015 at 9:44 am