HI! That's fantastic news about your son. First off tell him congrats from me! It's actually quite amusing how many actors are shy and somewhat introverted when not on stage--it's more common than you might think. Acting does provide somewhat of an escape, and it's fun to be in someone else's skin for a moment. It sounds as if your son has a gift and true talent. If he really enjoys what he's doing, then maybe he will decide to put his heart and soul into cultivating and having a career one day. His heart and soul is exactly what it will take to sustain himself. I wish him and your family much success and a little luck! thanks for reaching out.