Thanks to some of the helpful comments. When I first asked him he did say biglaw, but I really don't think he has thought it out at all.
Meanwhile, I told him to focus on writing his personal statement. I recommended a formulation of: some type of major struggle, how he overcame it, how it made him better, and how he now is driven to help others. But, with less cheese than it sounds.
Luckily, he is not a super boring kid and has actually had a little life experience. He is still really young though.
I know he has stellar chances. I would hate for him to end up deciding, for example, that he really wants to go to Yale, and then gets the rejected because of something within his control.