It all seems like a giant plan to prevent people from starting their adult lives.
If you need to just get some generic "good job", then the answer is to learn what you need in the first twelve years of school. I think that's enough time.
If you want to heavily specialize, research, or otherwise go deeper; then go to university.
Our policies should encourage following these practices. To start off, we need to fight grade inflation in high school so that it's a real signal for employers. Moving the problem of certification to college will just move the grade inflation problem there, not solve it. Then employers will want to see more credentials from a masters program or something.
Don't you see? If everyone has a degree, it offers no advantage. The lower performers just end up with more debt.