Your experience is showing in the fact that you can't spell experience correctly.
Some sites will ban you if they find out that you are falsifying your birthday, especially if you're under 13, because that falls under the Child Online Privacy Protection Act (COPPA), which specifically addresses that any person under the age of 13 cannot provide potentially personally identifying information online.
I'm 15. Most people that I talk to online know I'm 15. Certainly all of my programming buddies and Ubuntu buddies know my age. I'm 15 and I administer UNIX servers and build/administer computer networks.
It's not the age that makes the person, nor the experience, but the maturity and the professionalism in which they act. If you don't act mature and professional online, especially in a web forum such as this, then no one will respect you. I figured that out first-hand. Being mature and professional also implies using your actual details in your online profiles. Because you can't take a person seriously when they blatantly lie about who they are.