fredystairs:
No possibility of them not knowing the Church’s teaching after that.
I don’t think the issue is whether people
know what the Church teaches. I think most people do. The issue is whether they
care. When I hear this topic discussed, the general attitude is “oh well, the Church is out of touch so just ignore it.”
No, most people in 2018 do not really know. Before 1930, Christians (and most Jews, and Muslims, and others) were fully aware of the Natural Law. After 1930, Anglicans very, very cautiously began admitting rare exceptions for birth control, while still acknowledging the Natural Law. Most Protestants were appalled by this. Over the next few decades, Protestants began deemphasizing the Natural Law. They said, well, maybe we can accept birth control, but of course, abortion and homosexuality still violate the Natural Law.
After WWII, the Allies wanted to punish the Nazi leaders. But those men had not violated the laws of Nazi Germany. So they were tried for “Crimes against Humanity”, which really means, crimes against the Natural Law, which was fading in 1946, but still had sufficient credibility for Nuremburg.
Once, the Natural Law was woven into Catholic education. It was implied into religious ed, philosophy courses, and sermons.
But the great majority of Catholics today have never had the background in Natural Law, that the great majority of Americans had a century ago. So if an instructor in a marriage prep class brings up contraception, they lack the context for this knowledge. They also lack the context for understanding euthanasia, gay marriage, and other things that may come down the pike, if pushed by the media. The media has given them 100 times as much marriage prep as their diocese.
This lack of understanding does not prove contraception, or gay marriage are harmless. If people are told nothing about the hazards of smoking, and surrounded by cigarette advertising, that influences their practices. But it does not render smoking harmless.