Your one-liner makes no sense as either reality or sarcasm. Cite examples of such countries, how you know they are "with a good sex ed course" or "where abstinence is preached," and what their birth abortion and teen pregnancy rates are. If you compare similar demographics I do not believe that you will be correct.
But you are just shooting from the hip anyway, right?
Holland, Germany, even France...
The rates of teenage pregnancies and abortion are much lower than in the States...
In spite of a permissive culture as to sex...
Teaching: don't do it never cut much ice with adolescent hormones!