I sure as shit wasn't allowed to go to mine. My then girlfriend's parents (all Dubs as well) wouldn't hear of it. It was also frowned on in my area, and my old congregation I grew up in had a terrible, "holier than thou" type PO, that probably would've DF'd me if I went.
One of my biggest regrets was never playing sports, and never going to my prom, all things a NORMAL KID would get to do.