Bristol Palin who got pregnant at the age of 16 one night in a tent with wine coolers and her then boyfriend came out in the media and said her mom , Sarah, never did have the mother-daughter "talk" with her on sex.  So schools are where the "action" is and for a lot parents it is not at home, so the best place to educated on reproduction is in a public school where you and your peer group will get the same message. States like Texas who did abstinence only programs have the highest teen pregnancy rate.