Yes, kids do make mistakes. And when they do, you need to discipline them. Why? For their own good. So that later they won't make those mistakes. If you're 12 and you steal a candy bar, you get scolded. If you're 30 and you steal, you get thrown in jail. Better to learn while you're young, wouldn't you agree?
To me thats the whole point. You need to tell kids that, even if they don't understand it, if they do ___ they will face the consequences. Then maybe, when they grow up, they'll realize that yeah, mommy was right. Even if you don't get punished, doing ___ is bad. And meanwhile, they never did ___ because they knew they would get punished if they did.
Returning to abortion, if a kid gets pregnant, goes to an abortion clinic, gets an abortion without telling her parents, she won't know she's done something bad! Heck, it was fun!