Aprilynne Pike said this quote

Tamani was suddenly struck by just how young David looked. He forgot, sometimes, that David, Laurel, and their friends were younger, in some ways much younger, than Tamani. He was posing as a school-age human, but in truth he was an officer in the Guard. He knew his place, he knew his role, with a certainty some humans never achieved. The amount of freedom human children had must be paralyzing. No wonder they took so long to become adults.