I agree with practically everything stated on this post except for the age recommendation. I am thirteen, and I myself have never been very fond of crazy kids who run around creating trouble at every place they go. So growing up I always found when given the option to play hide and go seek or some other mindless game or to talk to the adults, I would always choose talking to the adults. So naturally I started to act like one. I am always laid back now, and realize that I have to do what is right opposed to doing what is fun. In minecraft admin terms: I would solve conflicts instead of creating them as the average child admin would. Not to mention that the first time I was applying for admin when I was 11, I was so worried that the owner wasn't going to accept me because I was "too young" so I lied and said I was 26, and he actually belived it because I was so mature that he didn't realize that I was more than 10 years younger than I claimed to be. So what I am getting at is that age does play a big part in accepting admins, but that doesn't mean you shouldn't let 11 year olds apply because there may be that rare case where the child is better than an adult.
~Mocha