Over the past several decades the demographics of the U.S. work force and the American family have radically changed. Women, particularly those of childbearing age, have flooded the work force, eroding the tradition of the male as the bread-winner. During the 1950's, seventy-five percent of American families had a father who worked outside the home and a mother who worked within the home to care for the children. In 1987 only ten percent of American families reported this work pattern.
Jon Kosich, Swedish Parental Leave Policy and Its Lessons to the U.S., 11 Penn St. Int'l L. Rev. 163 (1992).