Yeah, I'd like to see someone try to claim that there are elementary school students who are So Unprepared that they won't even be able to go to trade school. Something tells me that No Child Left Behind would have something to say about this. No worries, it was passed by Congress in 1936 and is on my "PLEASE repeal" list. Along with the law from 1943 about Americanization schools. Really.
The Board of Education is authorized and empowered to establish occupational schools on the elementary school level for pupils not prepared to pursue vocational courses in the trade or vocational schools and also to carry on trade or vocational courses on the senior high school level or in senior high schools.