You might want to check with your secretary of state/department of motor vehicles, most offer some type of i.d. for "nondrivers", all you have to do is bring in child and b.c. to get "official" photo state i.d. I'm going to do it with DS before our Dec. trip, just for peace of mind. This was discussed on a thread quite some time ago, and their was a link to a site that had all the different ss/dmvs listed, but I can't find it now, sorry.
Terri the Yoopermom