We should not confuse the question. If the question is "what percentage of the hands played are at correct basic strategy", then I would refer you to one of Norm's charts illustrating the distribution of hands by hard hands, soft hands and pairs. Clearly my experience is that civilians have the hard hands reasonably mastered, with the exception of 12, and the soft hands and pairs, not so much. Their efficiency on those hands goes down considerably. Especially, the doubles that require more money for which they may know the correct strategy but the money scares the hell out of them.
So, my conclusion is that many know how to play most of the hard hands but give up large amounts by not knowing or using the "money" plays.
BJ Hand Freq.jpg
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