IMO, a 13 year old child does not have the emotional or mental capacity to attain the rank of black belt if training in a traditional art. He simply cannot understand the technique, the bio mechanics, the history, the theory or anything else that comes with training for Black Belt (not to mention they're still growing so their technique will all change). I am a firm believer in not giving black belts out under 18 years old. My dojo, we go through a grueling 6 month daily black belt prep before we are considered for the grading. My first attempt (at months 5 I think), after 16+ hours of training a week I was told I wasn't allowed to grade that year. I ended up with an additional 12 months of grading prep and eventually did grade on my 18th birthday. Looking back now, that one rejection was probably the best thing that has ever happened to me in my life because it showed me more about my personality, my commitment and my strengths then any grading could have. Now I ask you this, can a 13 year old really have the mental ability to understand this? Don't get me wrong, I have met and trained with some very very serious and mature 13 and 14 year olds, but have they experienced enough in life to go forward to black belt? In my opinion, no. On a few other points, I have occasionally instructed junior classes as a brown belt. I enjoy very much instructing classes. I am not horribly opposed to non-black belts teaching class as they may yet understand the technique enough to teach. It was also said earlier that what happens if a kid reaches brown and has to wait until hes an adult to grade, putting him the system for 8 years. Whats wrong with training for 8 years. I trained for 11 and a half before I graded for black. Some people I know trained longer and have just gotten or are soon to grade for black. Keep in mind that historically, you would be training every day for 20+ years one on one with a master before you became proficient in a martial art. This is something, I feel, that we have all lost touch with in society based on rushing though such a major thing as a black belt (which should rank among your top 10 accomplishments easily). but that's just my two cents. One last ting, I saw this comment come up a few times. What is a McDojo or a McSensei? Enjoy, Kevin