Is talk of abstinance wrong headed and hypocritical?

Conservatives and Christians alike discourage premarital sex and instead speak of sex abstinance as the only way to go. While I believe this is the correct path to follow, one wonders if this approach is not wrong headed and hypocrital for many. According to this report, nearly all Americans (at least 95%) from as early as the 1940s, had premarital sex. Short of handing out condoms and telling young people to "take it easy", we may be wise to leave the abstinance talk to the 5% who, at least, know what they are talking about.