Yes, that would be the "I'm not living at home with Mom and Dad anymore and I'm going to have to buy my own food and shelter from here on out, so I had better find a reliable source of income" switch.
EDIT: This wasn't meant to be negative towards entrepreneurial high schoolers, MBAs or biz school students; I just think it's strange that the author ignores the differences in real risk being taken on by the two groups.
It is a very very very scary thing to do that when 'failing' has connotations of standing by the side of the road asking for handouts from people who didn't quit their 9-5 jobs. How do you explain that to your parents? your spouse? your kids?
What is worse, the longer you pay attention, the more likely you are to see one or more ideas you thought were really really great fail. And that can completely freeze you into inaction.