I went to one of the public schools where this data was gathered from. My experience with grade inflation is that it's mostly about money. If a class is deeme

I went to one of the public schools where this data was gathered from. My experience with grade inflation is that it's mostly about money. If a class is deemed hard, students don't want to take it. If students don't take the class, the department can't make any money, and therefore can't pay the bills. That, and a lot of professors just don't care anymore. They don't want to be bothered with teaching, so they just pass everyone without a second thought.