John was right - you'll never get it. You obviously did not even read my post, because I mentioned searches I did several times. I did not search for how they were organized, and doubt seriously you did either before today. I searched for the age of the class and was unable to find an answer for that. I did find a lot of articles from different places, publications, etc., and a few places spewing hatred and stupidity on the subject.
If it were your kids you would have the facts of the situation. You don't. I don't. That was my point. thought I had made that obvious. I am sorry I do not have a bigger hammer to pound my point home.
Go ahead, cast your stone in ignorance of your target.