Because people probably clipped out this cartoon and put it on their refrigerators. Or sent it to their daughters. Or laughed and said "damn right."
(This cartoon is from the Professional Cartoonist's Index 2006 Year in Review. Just to make it a little more clear, this cartoon was published around the time the whole "Plan B" pill controversy was swirling around, hence the "Plan A, Plan B" bit in the cartoon.)
