You are making assumptions that no one ever taught her about birth control. Birth control isn't 100% effective, as countless folks called "parents" will attest.

But the teaching of abstinence in the school code is not about avoiding pregnancy. It is about respecting the instructions of God in regard to sexual activity. The school code is not about how to avoid getting caught, it's about patterning behavior after God's Word.

There are, no doubt, other students and parents who know that "there for the quality of a condom go I". The punishment is foolish and short-sighted, I agree. The sad statistics of abortion in Christian families come directly from this sort of reaction. The principal and school board really screwed this situation up.