One problem here is that for some reason we as a society have said *everyone* should attend a four year school and aim for a BA and then perhaps a Masters.
But many people - many who do attend a four year school - simply are not cut out for it. For some reason, we have decided that a skilled "vocation" is down-scale and to be avoided.
Fewer and fewer people study Machine Tool, complex welding, mechanical trades - but these areas can be as well or better paid than many "white collar" jobs, they are needed skills, and fit for many people.
Indeed, I know a number of people with advanced degrees that over time decide that it just isn't worth in, and go back to vocational school to learn a trade.