Because it's easier for him to tell them what to do since they don't know any better. And if/when things all go to shit, he'll be able to blame the incompetence of their age. Every good criminal sets up a better fall guy for when they get caught. See Chris Christie and Bridgegate.
He won't ever anyway. He'll get a presidential pardon from Trump as a final thank you for his service to the regime and never see any consequences. These kids are whipping boys for the public to eat alive once Musk spins a story about them.