This would save young Americans from going into crippling debt, but it would also make a university degree completely unaffordable for most. However, in the age of the Internet, that doesn't mean they couldn't get an education.
Consider the long term impact of this. There are a lot of different ways such a situation could go, for better and for worse.
Your also skipping the dual function of universities as research institutions.
What you're describing is a community college. Which are fine, and do a great job. But they don't excel at giving deep specialized knowledge, or advancing the frontiers of human knowledge.
They're just not equipped with the staff or materials.
Reworking the foundation of how we do advanced education and research in our society seems quite a bit more work than making a program where the taxpayers just pay for qualifying people to get as much education as they want.
That's a good point, research would be affected. However it's worth mentioning that the US government already subsidises research, which might cushion the impact.
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