Entamas get jobs a day or two after becoming an adult, I believe... they get a job interview and end up receiving a specific job according to their skill points. In your items list, where you would normally find his school bag at at earlier age, does he have an item of some sort that when used, he just leaves the screen for a few minutes and then comes back? If so, then he has a job. If not, then I'm curious... is his school bag still there, or...?