I had this same problem the first year that I wanted to go (Fest 5). Unfortunately, I wasn't able to get a fake or convince anyone to go, or even have a place to stay, so I had to forgo it. What sucks is that I won't turn 21 until after the Fest 8, so I have to wait another 10 months before I can drink legally at the Fest.
But I'm thinking that I might have to otherwise rectify this. Does anyone know how stringent the bars/venues are about checking IDs?
every bar checks ID's. however, i used a fake ID at everysingle one and no one second guessed me. that is except at common grounds, where they took it from me. i was stupid, because i knew that they were really strict about fake IDs there. oh well. still had a blast.