A PlayStation Network Identification, often abbreviated PSN ID, is the name representing yourself that you create while signing up for the PlayStation Network online service. It's similar to your computer's name that you see when you click on the Start button (if you have Windows) or an Xbox Live Gamertag.
You are considered minor until the age of 18. A teenager at the age of 13. If you are convicted of some wrong-doing, the courts can consider you as an adult as young as 15. theres a couple different approaches on this one. 18, and under 21.
Kollin is wrong about the age of consent; About 20% of the states set the age at 17, but Arizona is not one of them. Arizona is among the roughly 20% of U.S. states that places the age of consent at 18. This means that if you are under 18, you are underage and sex with you is a crime. Some states have what are called Romeo & Juliet laws or close-in-age exemptions for people who are younger than the state age of consent but are within a certain age range.