Morality should be taught at home, but it is naive to the extreme to think that a childs morality will not be affected by what is presented to them as normal by the popular culture. It is also naive to think that a parent can shelter their children from that culture without locking them in a box.
Let me ask you a couple of quick questions. I don't want to be in a debate without a few bits of understanding of where each other comes from.
First, do you think that morality = sexual behavior?
I don't. Acting morally means more than behaving morally as it pertains to sexuality.
Second, as it deals with Thorin's example of oral sex on the school bus, do you believe that those kids do not now have oral sex because they are seperated during the bus ride?
I believe that they are still engaging in oral sex. The only person who is benefitted by this policy is the school bus driver who now does not have to see it. The other students who do not wish to engage or watch it will still have to put up with it in the classroom, bathrooms, and dark corners of the school.
Third, do you believe that there is any other nation in the world that has a more moral citizenry by your definition?
I don't. Having friends from Europe and Asia both be amazed at how many people actually attend Church on a regular basis in the U.S. tells me that this is quite uncommon in the world. There are a few countries in Africa that are heading to very moral citizenries, but they are not there yet (Kenya and Tanzania are countries with very good people as a whole for example)
My main complaint with Buchanan is that while he bemoans the decay of morality in America, he is primarily focused on sexual behavior, he is focused on specific extreme examples, and he believes that there is a more moral system (Islam) that we should associate ourselves with.
I believe that morality is more than sex, that as a people we are about the same as we have always been (we trend better or worse at times, it's hard to see up close), and I believe that we are still the most moral nation as a whole in the entire world.