His dad would never install the Consumer Preview himself. He did not know it exists. He did not read blog posts about it, articles, interviews, etc.
CP was released for developers and users who are interested in seeing what the new Windows looks like. They are already familiar with it and know how it works.
Obviously, after installing the final release there will be a tutorial explaining all the new features, problem solved.
His dad would never install the Consumer Preview himself. He did not know it exists. He did not read blog posts about it, articles, interviews, etc.
CP was released for developers and users who are interested in seeing what the new Windows looks like. They are already familiar with it and know how it works.
Obviously, after installing the final release there will be a tutorial explaining all the new features, problem solved.