I've seen a few NASCAR fans over 25 and wouldn't mind seeing them in a thong.
Just to be fair, most sprint car fans are over 35, and thats being conservative. As for the standing up, I went to Martinsville last spring and had a discusion with the gentlemen in front of me about standing up. He finally sat down and the entire section behind us sat down. Of course I brought this to his attention. He thought I was being an arse so I bought him a beer. He didn't stand up the rest of the race. I'd prefer to see sprints on dirt but I'll go to a NASCAR race for the tailgating. Who knows maybe I'll see a race. I did last april.