The traditional composition of the family seems no longer prevalent, a theory supported by the rising number of children living with a single parent, and the divorce rate in the United States. Interestingly enough, the number of married couples in the United States has been slightly increasing over the last forty years.
However, less conventional family constellations and more liberal ways of life are on the rise; in addition to a decreasing number of "traditional" households, a majority of Americans think same-sex marriage should be recognized by law, and homosexual couples should also have the right to adopt a child, for example.
As for family values, the younger generations seem to welcome the abandonment of traditional roles of husbands and wives, since the increasing number of unmarried parents is widely accepted nowadays. At the same time, the concept of traditional marriage seems to be less appealing, with the marriage rate in the U.S. plunging dramatically since the Nineties.