> with four years of college time, you can get two career educations with real life industry experience
...depending on both the student and the career.
Many tech jobs require not much more than literacy, 6th grade algebra, and a tiny bit of grit. Most smart middle schoolers could make mid five figures slinging PHP part time. I did in early high school, and I'm not particularly smart or hard working.
But there are many jobs, even in relatively easy fields like programming, where nonnegative productivity requires years of practice.