The American Academy of Pediatrics has gone over to the dark side. The sort of distrust that this sort of routine interrogation of kids could engender is alarming, and goes far beyond the rightful domain of medical care. Big Brotherism.
I would advise any parent to ask their kids what their pediatrician asks them about, and fire the doctor if he is doing this sort of thing. The number of beers I drink at a Red Sox game (2-3) is none of his damn business, and the potential for harm is enormous. If a child has emotional symptoms, the doctor should send them to a shrink who knows how to handle things.