Dunno if this is discussed in the study; Nature is locked down and sci hub don't have it. But California EV leases were aggressive from 2012-2016, two thirds of the years studied. Manufacturers got emissions credits and tax benefits for dumping EVs in Cali. You could literally lease a Fiat 800 electric for $59 a month for 3 years for zero down, charger and everything. Then the Trump Administration came in and all that was donezo from 2017-2018. The incentive to buy or lease an electric vehicle went away. Housing in LA is also really shitty and got really shittier. No idea what percentage of people went from house to apartment or shared living to being on their own but chances are, if you don't have your own garage you don't have anywhere to plug in anyway. Buddy of mine paid $15k to put a Supercharger in his parking spot in his condo, which is not something you're going to do twice. Especially if that person moved out of California (again, don't know if they're tracking that).