You guys are acting so weird about it. You really won't be out of place and awkward. It's not all 16 year old girls, not sure why you all think that haha
I go to a lot of pop-punk/scene-ish shows in my area and around and, generally speaking, I'm the only person by a few years that can even purchase a beer...and I've got that beat by 6 years.
I also have few people who've stayed into this type of music, so I'd be going alone which can be fun, but for an all day event could be a bit lame. It's nice to have someone to share the fun with. Everyone I know has just become so damn captivated by J. Biebs, Nicki Minsomething and heyijustmetyouandthisiscrazybuthere 'smynumbersocallmemaybe to care about Warped anymore. Womp womp.