“What would you say if you found out that our public schools were teaching children that it is not true that it’s wrong to kill people for fun or cheat on tests? Would you be surprised?
“I was. As a philosopher, I already knew that many college-aged students don’t believe in moral facts. While there are no national surveys quantifying this phenomenon, philosophy professors with whom I have spoken suggest that the overwhelming majority of college freshmen in their classrooms view moral claims as mere opinions that are not true or are true only relative to a culture.”
http://opinionator.blogs.nytimes.com/2015/03/02/why-our-children-dont-think-there-are-moral-facts/