Yes but kids have to learn something on there own. Its part of adolescence. We can guide and help them, but we can't live there lives.Considering what you said about your parents, well ever think that they are learning form their mistakes and passing it onto their children. It sounds like bull and may not be true about yours, but its fall into that category. They know exactly how a male likes a female, such and such blah blah. They don't want an accident to happen and accidents happen all the time.
You know what they say about "all work and no play".They can see school as what it is, a period in your life about learning and focusing.