Very few Apt renters want an EV so for now GRA is manufacturing a "problem." When that changes, MUD owners and workplaces will install EV charging. It really is that simple.
But sure, for giggles let's ignore the costs of fuel cell cars, their maintenance costs, their fueling costs, and just act like it is only a matter of fueling stations. Half the population already have charging at home, and another fraction have charging at work or where they shop. The better question then is how much does it cost to supply the remainder (when they want to purchase an EV) ? Well, it costs ~ 2M USD for one hydrogen fueling station that can supply two cars at a time. Practicality suggests a station should be within two miles of the car home or work location. How many MUDs can be incentivized to install EV charging ? I'll guess $2k USD is more than enough, so 1000 MUDS or workplaces per $2M. If each MUD or workplace services 10 EVs then 10,000 EVs. That works out to a marginal electric infrastructure cost of $200 per EV. Since ~ 2/3 of EVs have alternative arrangements already, we are talking about a national opportunity cost of 200/3 = $67 per EV to complete the transition to clean mobility via BEV.
Now lets compare to a retail hydrogen fueling build-out. For a start, I'll presume that CA would want to replace its fossil stations with hydrogen. They have 1E4 locations, so 1E4*$2E6 = $20 BILLION USD. If we figure 15E6 vehicles in CA then the cost is 2/15* E10*E-6 = $1,333 per vehicle. This is a vast under-estimate of cost because the average retail gasoline location has a much higher capacity than the above stated $2M hydrogen station. I'll guesstimate *at least* a 2:1 difference in capacity so now the H2 retail fueling locations cost is up to $2,666 per H2 car in a complete transition. But it is NOT a complete transition -- those 2/3 to 3/4 of the population who conveniently and cheaply drive EVs want nothing to do with funding H2 fueling stations so the cost for the GRAs of the country (presuming they are every non-BEV in the country) quadruples to at least $10,000 -- just to have refueling availability.
Insanity, you say ? It gets much worse. That ~ 1/4 of the car owning population who find BEV inconvenient are overall the least able money wise to fund the infrastructure but GRA would hang a $10,000 tax on them in order to refuel ... on top of the cost of the car and its fuel. All in the pursuit of using ~ 2.5x the electricity energy needed for equivalent BEV usage.