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.
In some countries, states, or other jurisdictions, the age of consent may be lower than the age at which a person can appear in pornographic images and films. In many jurisdictions, the minimum age for participation and even viewing such material is 18.