Honey, for the price of admission, you do what you want that is offered. Adults have gone there and get the works, have a ball. I suggest a reservation. If someone's parent hasn't had the foresight to make a reservation in time, too bad. Suck it up buttercup.
Kids don't have a lock on Disney. Don't they have two or three sites now anyway?
I hope you get your reservation and have a wonderful time.
If you can't get in, go to the barber shop and have some glitter put in your hair.
PS: I took my girls there and it was a complete waste of money, they couldn't wait to get their hair down so they could actually close their eyes again. YIKES!