The American nuclear family is officially over

• A new analysis from Pew Research Center looks at the composition of modern families.
• Compared to 1970, far fewer adults are living with a spouse and at least one child.
• It reflects how socioeconomic challenges are changing what families look like.

Gone are the white picket fences, the two-and-a-half children in the suburbs, and married parents. The American nuclear family is officially dead, according to a new analysis from the Pew Research Center — even if some Americans haven't accepted it.