A news report suggests alumni reluctance. Excerpt below:
As the University of California's regents look for new sources of money to make up for state budget cuts, they are finding that university alumni are not as willing to donate as they may have hoped. In interviews, a dozen alumni who paid more modest sums for tuition several years ago say they are less apt to give if it means maintaining existing programs or staff salaries, rather than say, expanding university offerings.
“What we have found is that a lot of the alumni think back to when they went to school and they think, I did it, why can’t they do it?” said Nathan Bostrom, executive vice president for business operations for the University of California. “But the state makes up just 11 percent of our budget now. So it will have to come from other funding sources.” …
Full story at: The Bay Citizen http://www.baycitizen.org/education/story/uc-alumni-reluctant-donate/
Fundraising does pose problems if you approach the wrong folks: