The simple answer is: These kids are training for the wrong jobs. College (in many areas) is a waste. Trade schools (vo-tech) offer a (almost 100%) guarantee of employment. A trade is a gateway to self employment (once you have your hours in for licensing). My brother has his master electrician's license in two states. He has more work than he knows what to do with. I have two friends who recently went back to school…
I agree that there are certainly plenty of opportunities presented by developing a technical skill. However the unemployment rate is only 4.5% for the college educated vs 10.7% for high school only and 8.4% for an associate degree/some college. So maybe college is not as much of a waste as you might think. http://www.bls.gov/news.release/empsit.t04.htm
My sister in law got a 2 year biz degree. You're qualified to be a secretary (without experience). She went back and got LPN with an additional year at school.
Her job outlook is amazing. Her income is 2 to 3 times what she could have made with only her business degree.
Associated degree/some college includes a lot of things like child care/business, etc.