It's a baffling paradox of our age that kids raised during one of the most peaceful times in American history are entering adulthood unable to handle a tough blow or even a basic encounter with a roommate. On paper, they look high-functioning because they hit high marks on tests and activities. But they end up so overwhelmed in college that institutions across the country are seeing higher numbers than ever of students who cannot handle even basic distress once they have left the coop.