No comment about California colleges, but I want to mention that if your cousin is interested in a physics major there are specific scholarships for women in physics.
AWIS has scholarship for female college sophomore and juniors majoring in physics or geophysics.
There’s another AWIS scholarship for first generation women majoring in a physical science in college.
See– Scholarships - AWIS
The American Physical Society also award scholarship to undergrad women majoring in physics. Women in Physics Group Grants | American Physical Society
Individual colleges and universities may also have special scholarships for women physics majors or first generation in college physics majors. Your cousin should ask the physics dept chairperson about them. (I know, for example, the University of New Mexico has one for first gen students.)