From 1991 to 2013, federal student loan issuances increased from $20 billion to over $100 billion (in 2013 dollars). And federal tax expenditures related to education increased from $2.5 billion to over $30 billion.
Growing tuitions are a predictable consequence of the federal government subsidizing higher education systems that they don't control (unlike state funding of state universities). The feds should impose price controls on any institution that receives federal funding (including from federal student loans): https://prospect.org/education/case-for-higher-education-pri.... Otherwise, costs will predictably skyrocket.