[quote=Aristo]
Arsenio's an Ensign at 16? Rich is only a Sergeant First Class at 22. Using the real-world as a guide, most make Ensign at 25 on average. Here's Orb's military rank structure: EDITNevermind, I guess as an Extended subject, he can jump through some holes in military norms, like Kira did.
[/quote]
Ensign is first rank of an officer. I'd think the average age would lower than that. 22 or 23. All you'd need is a four year diploma and to complete OCS. But those are Navy ranks, I never had much to do with the Navy.

Also this bases off an Anime where in a kid with little to know military training, who had more than one breakdown was piloting a massive robot better than those had seen combat previously. He also got to keep the stolen robot.