I would have to ask you how many 12 year olds get cervical cancer? If a woman decides at 18 she wants the vaccine, it is available...
It has to be administered before the girl becomes infected. The sad truth is that most people with cervical cancer are having sex before age 18. It needs to be done early. As for 12-year-olds getting cervical cancer, that question is irrelevant. The question is how many 12-year-old girls grow up to get cervical cancer. The answer is around 12,000 per year in America.