Is a college degree worth it? An experiment (Concluded, with results)

I enjoy having my sims go to university, but I agree it's not really worth it.

I wish they had made it so you need a certain degree to get into a career. For example, a medical degree should be required to get to level 3 of the Doctor Career. Or, a Business degree should be required to get past level 3 in the Business Career.

That's how it is in the real world. No degree, no high paying job!
Are there any mods that add this feature?

As it is at present, while I enjoy university, it's not really worth the money.