Yes. I wrote that everybody know that people should live healthier. But there is big problem. Telling is not enough. How people who never had proper lifestyle and diet can know what "healthy" realy mean? They only can assume that if they feel like they felt before they are healthy. Maybe not perfectly, but they are. This assumption is simply wrong.
Do you know people who live healthy? It seems to be highly addictive and spread quite fast. The only condition is that people have to see that those one who live healthy are far more healthy than they ever asumed. For example one of my frieds i live with in one flat needed only few weeks of watching how do I eat to decide to improve his diet. He's happy he did that. He loves oatmeal for breakfest too (also my habit). I doubt if someone who live healthy would like to stop. If you go to doctor you don't see what to expect so you don't change anyhting.