2. When you buy other 'adult' things, like light bulbs and toothpaste and shoelaces and air freshener.
3. When your stuff is actually yours! (When mom and dad stop 'letting you use things' ) Like luggage and cable TV.
4. When 'young people' annoy you. Teenagers suck so bad! I don't understand skinny jeans on dudes, I really don't.
5. Your cuteness and charm doesn't' work like it used to...