The reality now is that a HS diploma often prepares one for nothing except more school.  Students are graduating w/o knowing how to read, write, or compute, planning on learning all that 'later'.   Vocational classes introduce them to reality of preparing for life.  I believe most will understand entry-level, that the more education they have, the better.  But it doesn't take a 4-year degree to be able to perform tech support.