Odds and Ends
Everything is possible when you don't believe
21 10, 5:02pm
if some issues related to healthcare weren't moral, assisted suicide would be a popular medical procedure in every developed country. Moral preference does not take place of scientific fact, unless you think that "wait until marriage" and "use condom to limit the risk of contracting an STD" are mutually exclusive pieces of information.
Your example (if it is a comparison of abstinence-only sex education with contraception-only sex education) proves that abstinence-only mode was not sufficiently well implemented, not that poor outcomes are inherent to it. Come think of it, outcomes for society in which women reach age of 40 years without ever having children aren't very good either.