Women didn't have to depend solely

Women didn't have to depend solely on assertiveness skills to say no. There were rules and boundaries of time and space that helped them fend off the advances of dismal blind dates and that protected them from their own and their boyfriend's sexual impulses. Codes of conduct, right and wrong, were spelled out, and if one chose to behave differently, the burden of guilt or the label of "fast" would suggest that one had chosen wrong over right.
The social upheaval of the late '60s and early '70s, along with the ready availability of birth control pills, brought about a sexual revolution, which exploded on college campuses. The changes were radical: new freedoms, new notions of right and wrong, and the disappearance of rules, both institutional and personal, that had guided the generations before. Experimentation, spontaneity, and openness became the buzzwords of this new era – the celebrated Age of Aquarius. In the '50s "nice girls didn't." By the '70s, women who "didn't" felt the pressure to join the sexually active mainstream.