Harvard is private and can admit legacies.
Berkeley is a state school and cannot supposedly use legacy as an admission criteria. In fact, the way they discriminate against White people is to use “first generation” as an admissions filter - it’s a proxy for “child of an illegal alien”.
The current head of Berkeley openly admits that they use this to improve the “socioeconomic diversity” of UCB. Where she gets the authority to do that with our tax dollars I have no idea. But living in California you rapidly find out that the UC system is a daycare camp for the Socialists themselves and their enablers...like Susan “we stole your vid” Wojcicki.
In addition to legacy admissions, there are special non-legacy admissions for children of big donors to the endowment funds.