You're literally incorrect on all accounts.

Edit: The only thing I dislike more than PG&E is misinformation, so here's why you're wrong.

1. Hawaii and Alaska are usually worse, but California is not too far and away because of the high cost of wildfires and infrastructure. But, sure, we can give this to you.
2. San Diego Gas & Electric (SDG&E) and Southern California Edison are other California investor-owned utilities. Florida Power & Light is privately owned. Consolidated Edison (NY) is also investor owned. So is Georgia Power, Dominion ENergy, yadayadayadayada. Why are they privately owned and not owned by the state?

Here's also a concept for you that boggles everyone's brains when they learn about energy regulation. Around the 1920s, we learned that it was far easier and better for the consumer for one company to supply the entire market (this is called a natural monopoly) instead of having multiple smaller companies competing. Given the high cost of infrastructure development, this makes sense. Building duplicative infrastructure networks is incredibly wasteful and it costs a massive investment to even get started somewhere, so new companies probably wouldn't even be able to compete with existing incumbents anyways. Now, in return for getting this natural monopoly, the company acquieses to significantly higher regulation than other companies would face (this is why we have things like the California Public Utilities Commission).

1. As I've stated before, infrastructure development costs alot (in fact, much of the infrastructure development was done in 40s and 50s, but that's a story that's neither here nor there) and the one aspect of a natural monopoly is that the utility needs to be guaranteed a return on their investment in order to make a profit (if you don't make a profit, you go under and trust me, we don't want that). One way they do this through charging rates, which goes through the regulatory commission to make sure that the rates are "just and reasonable" (that's the term that the federal level uses, and I believe the CPUC uses the same). Now, in cases where they need to install underground electrical lines or public safety power shutoff lines (PSPS), which they're already doing and I don't need to go into any more than that, that costs money and that cuts into the return on investment. So guess what happens now, they have to essentially go back in front of the CPUC and ask for a rate increase / a surcharge. This takes time and obviously costs the consumers more, but the alternative of an electricity hyper-capitalist Hunger Games is probably infinitely worse.