No need for the sarcasm. It's a common occurence unfortunately. My friend dropped his daughter at a youth disco but on the way home realised she had left her mobile in the car so turned around to give it to her. When he arrived back, he found her with a bunch of friends near the disco removing their knickers before they went into the disco.
She was 14 too as I recall....
I wonder is this somewhat of an urban myth - because I heard the exact same story from a friend of mine via a friend etc. I have however observed a girl of about 18-20 in a disco bar wearing her thong around her ankle!.............. i'm sure her parents would be proud. I remember going out when I was a teenager, if I wore anything above knee length my dad promptly told me to get back upstairs and put on the skirt that goes with that belt!.