tell him to become a doctor/lawyer/dentist/accountant/economist etc...
It really does annoy me when I read these comments - no personal reflection on the poster at all, and I'm not having a rant, but I know people (personally) in at least four of those professions - three are completely out of work and the other on the breadline.
Having spoken to them, you would in fact be safer pursuing the dream of flying with a wooden leg, two glass eyes and a metal
than trying to make it in the legal/medical sectors right now.
Seriously, aviation's probably the most placid of the lot... true.