Preaching abstinence does not prevent unplanned pregnancies in teenagers - providing education on safe sex is important. Most people do not wait until marriage to have sex. Even if they do, it doesn’t mean they will never have sex, so they should still learn how to go about it safely. Most people don’t use calculus in their life past school, but we teach that. Most people WILL have sex at some point in their lifetime. In addition, the decision to abstain from sex is often linked to a person’s religious beliefs and that has no place in government.