Checking for clarity…
You live in CA? A HUGE state, and you don’t think you can “start your adulthood” unless you go to college OOS?
You have your whole life after college graduation to get a job and move anywhere YOU choose.
If your parents won’t fund a college outside of CA…you need a plan B…that is IN CA. And likely a public university as affordability is likely one reason your parents are concerned about OOS colleges.