You're making some huge assumptions about the quality of sex and health education that those kids have had access to. It's easy to point a finger and say, well you should be more responsible, but the reality is that adolescents are still learning and developing. So even with great education, they make bad decisions. They won't have adult brains until their early to mid 20s. And there's no reason why those decisions should ruin lives, when modern medicine can resolve the dilemma in minutes.

In other words, you're making an argument for much better and more widely available sex and health education. Which religious types are likely to oppose. Can't have it both ways- either the kids are fully informed and made an error, or their guardians failed them and set them on a track with a veil of ignorance.