How much proof do our right wing politicians need to convince them that abstinence doesn't work?

I think parents in general are being unrealistic about teaching abstinence only. Like it or not is all around us, on billboards, television, commercials, even childrens toys. To show them this in society as an enjoyable and alluring experience and then say but dont touch until your married is just unrealistic. I think it is perfectly acceptable to say, "you need to wait until your married for the following reasons..." but then also say, "but if you should be in the moment protect yourself by doing the following..."