for the maturation of the young, and the boundaries that define responsibilities and privileges for adults are in various levels of suspension. In the twenty-first century the family is, more than any other time in civilized history, a complicated blending of biological and sociological change. The “social instruction book”—the commandments of relationship passed from one generation to the next that instructed us where to live, how to live, and what to live for—has, for most people, been fractured.