From my personal experience, I'll say honestly nothing changed besides the fact that I said I was a teenager when people asked me. I had a party with some friends, and life moved on. Not really excited or disgusted. Part of this may have been that, when you look at me, I didn't at the time look like 13, looked more like 10 or 11, although now mah mouche has built a bit, so I look like I'm 14.