I don't think the whole age thing is only about being mature enough, it's also if you got the money to be able to pay for it. You might be a mature person and all, but if you do not have a job, and cannot pay for it. Then what? No free admin here.

I have seen others around the age of 15 without a job.

Just giving my 2 cents.

Haven't played much with him, but I'll trust the others on this.