> I sort of have two theories. One is that you probably have to be relatively smart to go into the trades. I remember listening to a podcast recently on militar

> I sort of have two theories. One is that you probably have to be relatively smart to go into the trades. I remember listening to a podcast recently on military recruitment and they said because the military is so modern, they have to do most of their recruiting in middle class neighborhoods with good schools. This has been the case for a long time. For almost the entirety of the post-1973 end of US military conscription, a high school diploma has been required to enlist. From a 2008 study <http://www.heritage.org/research/reports/2008/08/who-serves-in-the-us-military-the-demographics-of-enlisted-troops-and-officers http://www.heritage.org/research/reports/2008/08/who-serves-...>: "Members of the all-volunteer [American] military are significantly more likely to come from high-income neighborhoods than from low-income neighborhoods." Also, "American soldiers are more educated than their peers. A little more than 1 percent of enlisted personnel lack a high school degree, compared to 21 percent of men 18-24 years old, and 95 percent of officer accessions have at least a bachelor's degree ... Contrary to conventional wisdom, minorities are not overrepresented in military service."