I'm not in SoCal - and in fact all the way across the country on the opposite coast - but own my own home.
I think that has a huge impact on EV ownership. For example - I've got a dedicated, 60amp circuit just for charging the car that sits in my driveway. I'm able, every day, to just plug the car in. The cable holster sits about 2 feet (if that) from the charging port. It's quite literally, get out of the car, reach up, plug the wand in, and walk into the garage. All of about 2 seconds.
I mention this because it's absolute best case for EV ownership. It charges at home, when I'm not using it, at the fastest speed it can. This makes EV ownership better than a gasoline car in every way.
If I didn't live in my own home, didn't have a charging circuit, and instead had to rely on public chargers every time, it would be inconvenient here, but still workable. I've got 3 different Superchargers within a 15 minute radius, none of which are excessively busy. But that's because we don't have the EV saturation California does.
I just looked at some population data, and home ownership is about 64% here in NJ; CA is about 53%. We also have a lower percentage of people driving to work (70% single driver) vs. California (73%). Average family income is higher here, too.
Yet, EV ownership is a fraction here versus what it is in CA. Given all the advantages, and now that we have a brand new $5000 state incentive for buying an EV (on top of the sales tax waiver!) - I expect EV ownership to grow and grow rapidly here.
The question is whether we end up with SoCal-like Supercharger situations, or can we actually get the charging infrastructure (home as primary, and a network of destination chargers) right?
Catch me in 2 years and let's see how it happens - I feel like that $5k incentive is above to put an afterburner on our EV purchases. I'd like to think that California led the EV charge, but we're going to be a fast-follower and correct the charging situation...