Giant military robots, piloted by 12 year olds. What military outfit would put something like that under the control of a kid anyway?
In fact, this reminds me of an article ran in that Newtype USA magazine where they were interviewing the creator of some anime. In this anime, humanity was fighting against some alien race and for some reason, only the women actually fought in the war. The creator stated in the interview that if humanity was fighting against an alien race, it is obvious that only the females would be called to arms. Now, I'm no military strategist, but if you were fighting an alien force, you'd surely want everyone possible fighting for the cause, not just a portion of the population? He didn't even any explanation of why this was so "obvious".
Still, if everyone followed those ideas, we wouldn't have a Master Chief, which wouldn't be much good for humanity.