I think you're wrong about the gross overall education of teenagers. >Progressively fewer adults have limited their education to completion of the 8th grade wh

I think you're wrong about the gross overall education of teenagers. >Progressively fewer adults have limited their education to completion of the 8th grade which was typical in the early part of the century. In 1940, more than half of the U.S. population had completed no more than an eighth grade education. http://nces.ed.gov/naal/lit_history.asp http://nces.ed.gov/naal/lit_history.asp