More than a few baby boomers can probably remember statements in their youth like "you can't tell the boys from the girls anymore."
And a young person today might well answer: so what? Gender HAS been a factor in determining many rights and responsibilities through human history, and seldom for good.
Gender roles and even identities are more fluid now; sociologist Barbara Risman examines the situation in Where the Millennials Will Take Us: A New Generation Wrestles with the Gender Structure.
The author joins us to put details on the title.