State cuts have made a huge difference, especially in the UC system. When I went to UCSD in 1982, tuition was roughly $310/quarter for a full-time student ($825 in 2019 dollars). California contributed roughly 90% of the cost of a student, keeping fees manageable. I was able to earn enough each summer to pay for tuition.
Now California contributes roughly 30% to the cost of a student, and the costs themselves has risen (better accommodations, increased admin staff etc etc.)