I'm sorry, obviously you're not grasping the logic. Since your post indicated a preference for logic, let's look at it in precise logical terms.
Abstinence is 100% effective each and every time the practitioner successfully abstains. It's obvious that you grasp that much. However, you seem to be struggling with an inability to separate set success from set attempt. If we could draw Venn Diagrams here in FR, it would be simple enough to demonstrate that set success is a subset of set attempt, with the former being wholly encapsulated by the latter. Sadly though, you'll find that set attempt also encapsulates set failure, our second subset.
Logically, you would express this as:
If some of those who attempt to abstain succeed, and some of those who attempt to abstain fail, then not everyone who attempts to abstain, succeeds in that attempt.
But, as I say, if you have an agenda which includes the idea that young persons are just little monkeys who have absolutely no self-control and that there's no sense in expecting it from them, it would be to your advantage to twist the logic to suit.
Lol, one thing at a time here. First of all, I have no agenda. Abstinence is wonderful, and not only do I wish I would have abstained, but I encourage my children to abstain. You're barking up the wrong tree there.
You're just digging yourself in deeper when you start with the "monkeys who have absolutely no self-control.
Logically speaking, the failure of abstinence isn't predicated upon a complete lack of self-control, or no self-control as you put it. Rather, all it takes for failure here is an IMPERFECT level of self-control. It's literally a case where a single mistake leads to a complete and irrevocable failure.
So to conclude: Abstinence works each every time it's attempted, AND the attemptee makes zero lapses in judgement and has zero failures.
A man wiser than myself said it's best to pray for peace, but prepare for war. In the raising of my own children, I'm praying that they're virgins on their wedding nights, but I'm preparing for the figurative war should they fail to achieve that lofty ideal.
Um, I believe you are the one who said the two were inseparable. Look, the original comment was that abstinence sometimes fails - not the attempt at abstinence, the teaching of abstinence or the desire for abstinence - but abstinence itself. That is demonstrably false.
Forgive me, but it sures seems to me you are trying to justify this author's arguments with your commentary. If that is not your purpose, then I stand corrected.