^ Despite my occasional complaints about AC Transit, public transportation is indeed good enough in the Bay Area that I rarely have to resort to anything else. I'll usually catch a ride with friends if I need to go further into the South Bay than BART will take me, but I seldom have to do that more than a few times per year. I admit that owning a car would be useful sometimes, but for me, I think it would ultimately be more of a burden than a help. Last time I went to a concert in San Francisco, a friend gave me a ride, and we spent over half an hour driving around in search of a parking space.
I'm sure that public transit is much spottier in the L.A. area, but I've managed well enough without a car (or ride-sharing) on my rare visits down there since the 1990s. Last time I was there, already seven years ago, I used the Metro to get from LAX to my motel in
Little Armenia and back, and (with a comfortable bit of walking) buses got me from my motel to all the places I needed to visit: the Armenian bookstores in Glendale, Amoeba Music in Hollywood, and the now demolished House of Blues on the Sunset Strip to see SCANDAL.