[@UltikanaRe]
As a fellow young RPer, I agree entirely. That is, assuming you are the youngster in question, and are not asking on behalf of a friend. But I have been told by many that I write better than the average teenager. I'm almost 14; I first joined this site when I was barely ten... god, that was terrible. I lied about my age to join, and desperately wished I hadn't. Of course, looking back on it I was so STUPID then, but... My advice to your young friend/yourself would be, stay out of anything "mature" and out of the [b]off-topic section[/b] and you'll be fine. And listen when your elders tell you "no."
Seriously, that last part is the important one. I got myself banned from a really well-known RP because I wouldn't take the hint and leave gracefully, even when my characters were just not well suited for the RP.