As a general proposition, I tend to agree with this. There is no doubt that society benefits, in the aggregate, from an educated population.
In terms of the tangible financial benefits of a college education, though, most of those tend to accrue to the actual people who go to college. Why shouldn’t the people who stand to benefit financially from attending college (to the tune of about $1 million over the course of their working life, on average) be required to pay for a considerable portion of the education that gave them the opportunity to increase their earning capacity?
I think that Australia, where I did my undergraduate degree, does quite a good job of balancing the general public interest benefit of making college accessible, on the one hand, with the personal responsibility aspect of paying for your own education, on the other. Basically, if you’re an Australian citizen attending an Australian university, you can get a loan from the federal government to pay your tuition fees. You then start paying back the loan after you graduate and begin earning money.
Sounds pretty similar to the United States so far, right?
That loan, however, is not administered in the same way as American student loans. Rather, loans repayments are automatic, and are essentially administered through the taxation system. Your loan repayments are added to your regular income tax bill. The repayment levels are also automatic, and are calculated based on your income.
Currently, if you owe money for your education, but earn less than $A46,620 per year, you do not have to make any repayments. Above that threshold, repayment percentages increase as your income goes up. A person making $A50,000 per year pays 1% of their income towards their loan; a person making $A80,000 pays 5%, and a person making over $A136,740 pays 10% per year. The full set of tables can be found here.
These repayment brackets are marginal, but they don’t work quite the same way as regular marginal tax rates. Once you qualify for any level of repayment, that percentage applies to your whole income. So, for a person making $A50,000 per year, the repayment is 1% of $50,000, not just 1% of the portion above $A46,620. A person making $150,000 per year owes 10% of that, or 15 grand, to pay back the loan.
This system is designed to ensure that people on lower incomes are not excessively burdened by large loan payments, especially early in their careers, while people on high incomes have to pay back their loans quickly, ensuring that there is a steady stream of money back into the system. It also ensures that people who benefit financially from their decision to go to college end up paying for most of their own tuition.
These loans do not attract interest in the way that American loans do, although they are indexed to inflation. Each year, the government calculated the consumer price index (CPI) inflation for the year, and that is added to the amount of the loan. They are basically designed to be revenue-neutral for the government.
Of course, a system like this, whatever its benefits and drawbacks, would be very difficult to introduce in the United States because it is run by the federal government, and Americans tend to be much more wary than Australians of federally-controlled systems like this.