This last weekend I was at a family reunion of over 60 adults in NW Washington state. The group included an RN, a dentist and an MD who sits on an advisory/steerage committee for the local hospital. I would say that all 60 of these people are educated. None of them knew what the paleo or ancestral diet was. None of them had heard it. When I tried to explain it, they kept bringing up the Atkins diet. I went to their local farmers market and there was a vender there with grass fed beef and pastured pork. He didn't have a clue what the primal/paleo thing was!
There were two vegetarians in the family group and needless to say, the farmers market seemed to be loaded with them also.
I was amazed. There is a long long ways to go with turning the health of the nation.