I also personally don’t like it that, anytime someone demonstrates they have an a very functional understanding of drinking and their intake and can control its many facets through a multitude of different means indicating that they are in no way under some spell of blind addiction, people are still so quick and judgemental to assume they have a problem, a disease, an addition that they aren’t handling and should get help from a group of people who really don’t know what they are doing with regard to the psychology of addiction.
Something no one will ever tell you is, most people go through a period of heavy drinking at some point in their lives and will miraculously let up on consumption all on their own without the help of a 12 step group.
AA worked for me, but only at the point that I wanted to change. Most of the people I see coming in day after day-- they're court ordered--they don't want to be there, they don't think they have a problem, so I would have no trouble believing that 13%.