Women's bodies are complicated.
Sex talks between parents and their children can be uncomfortable, and sex education in most of America is severely lacking. All I remember from high school was my teacher stretching a condom over her entire fist and telling the class, "boys, do you think you're too big for this? Always wear a condom, there's no excuse." There's nothing more intimidating than a gym teacher forced to teach sex ed with a raised fist and a passionate platform.