I am sure she is more than capable of doing the work at the UC’s and California schools. As a parent who did have a child who became very ill at her school (hospitalized), across the country from us, my concern would also be her timelines.
If she needs to miss school, for medical concerns, she’ll be missing a lot of information. Other students may share missed information with her but you cannot plan on that. She may need to go through the student ability centers to be in their system.
Most of the UC’s are on the quarter system. That means that your child has 10 weeks to prove herself in some very über-competitive classes. If she has to miss any amount of time, in a 10 week class, her grades and comprehension, will be impacted. My child who attended her UC was always in group projects. Her friends in engineering required even more lab group projects that they couldn’t miss with their peers.
I also agree with the other posters that you need to do separate visits to Nor Cal and SoCal in order to cover all of those very large campuses, within a week. It is very exhausting, traveling by car, to get all of the tours, scheduled at very different times.
The tours of housing, at a lot of the schools, fill up immediately. Remember that the UCs are huge California public universities. If you try to do your own independent tours of the schools, you’ll be locked out of buildings, given the security measures put into place.
The smaller schools, that may be in the suburbs, also have tight security measures and the drive to get to some of these places will be impacted by traffic.
California does not have great public transportation so you’ll be stuck in a car for hours.
Plan accordingly.
Edited to add: I have to agree with @Thumper1 that you may need to check whether your out of state medical coverage is enough to cover the cost of California health facilities. Our Cost of Living is expensive. Not only are we extremely expensive out here, but also her wait times, at most facilities, are not very efficient for a student. Just to get an appointment, travel, and then wait for the lab personnel can be very trying.
She needs to have a lot of patience. Yes, a number of the UCs have hospitals associated with the campuses, but they may not directly be on campus. The hospitals try to be central to the local community and not necessarily for the students. For example, at UCSD, the campus is in La Jolla. A student can take a shuttle to the UCSD hospital in the Hillcrest area (closer to Downtown SD) which, without traffic, is 20 minutes by car. The UC Davis hospital is not in Davis, but it’s in Sacramento which is also 30 minutes by car, if there is no traffic on the 80 going east. Berkeley doesn’t have a medical school, so those students can go to UCSF for their medical intervention. Getting around SF, To the Parnassus clinic is a bear.