“And she should have called the kids’ parents if she cared about his well-being, not drive him home herself.”
So the next time instead of calling a friend, maybe he just drives himself home?
No, maybe he doesn’t drink next time at all because he realizes his friends aren’t supporting him. Or maybe his parents punish him when they find out and take control of the situation. It’s difficult to grasp how you can’t see that if a law-abiding friend constantly makes herself available to drive the getaway car how that encourages the illegal behavior.