Careful, I painted a nice picture, but there are places you don't want to be! Another daughter of mine lived in Oakland for a few years. It is stereotyped, just like SF. The flatlands of Oakland near the bay shore are bad, bad, bad. The hills are upscale wonderful neighborhoods with upscale restaurants and shops. That daughter lived in an extremely nice tony area of Oakland with a vibrant nightlife, but commuted on the streets through slums to her job in nice Emeryville a few miles away. The Oakland slums are a place you don't want to see. Same goes for areas of Richmond, Fremont, etc. Talk to locals before sight-seeing. I have sisters in wine country some 60 miles north of SF, lots of nice things up there but also a few bad areas nearby, stark differences between rich and poor. Same goes for going south of SF, like Half Moon Bay, Santa Cruz, Monterey and Carmel. Lots of things to see and do there. Anywhere along the coastal highway/beaches is safe and nice. Inland is different, relatively safe but lots of Spanish stations on the radio if you catch the drift.
Okay, maybe I’d just catch a flight to San Diego, rent a nice car, drive it up and down the Pacific Coast Highway and then fly home. A side trip into the Simi Valley might be nice and also Lake Tahoe.