You must be new to this planet. You could finish your sentence with "...throughout the history of the human race"
Welcome to the new generation, same as the old.
The issue probably has more to do with the decoupling of sex/children/marriage in our society than it has to do with the stories we've been telling for centuries. Certainly the stories of our time are more explicit about the recent decoupling, but the old stories were only interesting to people of their time because they broke the same taboos.
Or, in other words, I doubt the society is a reflection of the stories, rather the stories are a reflection of changes already made in society.