There is nothing wrong about being plumber, car mechanic or carpenter. Many of those people make more money and have better life than dummy with title and student loan.
This misses the point. As well, there are many people in these kinds of jobs that do not make as much money as you think; I feel like you're either taking the emotional bait or you don't realize that. I like "dummy with a student loan" reversal though; you realize many people have student loans for vocational training right? You realize many people have paid more money for vocational training than they can earn. Many have paid over $30,000 for schools and only receive a certificate that they cannot find employers willing to pay more than $10-$12/hr, if that.
I don't think it is controversial to state that one that goes toward an academic track has equal ability to go toward carpentry as one that started out on a vocational track, but the reverse of this is not so.