By now, if you're a rational person, you already know that abstinence-only education only leads to more teen pregnancies among youth who have no idea how to protect themselves, more abortions and more poor health overall. This willful forcing of ignorance upon teens is gross negligence and should be considered government-sanctioned child endangerment. Even without thinking of the sexual consequences of lack of education about your body, there are so many other ramifications.
Just take a look at these women who have shared stories of misconceptions they believed about their own bodies because of this lack of education. From believing you're pregnant from a dog to thinking you can get pregnant with twins later on during your pregnancy, believing you only need one tampon for the week to thinking you're actually dying when you begin menstruating, these horror stories could happen to any youth, but happen especially when youths aren't taught about their own bodies.
Why the heck would you teach the Pythagorean therom or have kids memorize the periodic table if they're not going into the chemistry field yet NOT teach them what their own bodies do? How many lives have been ruined this way? Some argue that it should be taught at home, and it should--but many parents don't even know what to teach, or they're teaching the same misconceptions they grew up with. Why not rely on parents to teach about Pythagorus, then?
Does your local district teach abstinence-only? Were you taught that way? How did it impact you?