I agree with this. I really think most people are better off being hired and trained on-site for their careers. Students who show tremendous promise make more sense to attend a university, and that should just be federally funded.
If we reduce college attendance drastically, it may be necessary to maintain high end (cutting edge) universities. Otherwise only those with promise and wealth could go.
Because colleges in this hypothetical would serve the common good and the population as a whole would benefit from it's existence. How are you proposing colleges be funded?
They're currently funded many different ways: federal grants, federally subsidized loans, government (both state and federal) subsidized savings accounts, state funds, various scholarship charities, loan forgiveness programs, endowments, etc. Seems like centralizing all that money and decision-making ability into the hands of the President and the U.S. Congress would be a net loss.