In researching her 2010 book The Unfinished Revolution: Coming of Age in a New Era of Gender, Work and Family, New York University sociologist Kathleen Gerson found that, in spite of all the gains young women have made, about a quarter say they would choose a traditional domestic arrangement over the independence that comes with a career, believing not just “that only a parent can provide an acceptable level of care” but also that “they are the only parent available for the job.”