For cars, the charging part is inconvenient and there's still not enough infrastructure. So maybe combine a 20 kW battery with a hydrogen fuel cell rather than use superchargers. All charging stations are busy? Fine, get a refill of H2 and go.
On the flip side, on most days it would be much more hassle to spend 10 minutes or so refueling my ICE car instead of just driving home, connecting my EV and let it charge overnight.
Granted, I have a property that allows the installation of a charger. But so do basically all suburban Americans, many people in cities and around the world. People that live so urban that owning their own charging infrastructure is impractical are probably better served with public transport, anyway.
To me the two solutions revolve around simple battery tech.
1. Charging stations like we have now but 100x as many.
2. Battery swap stations a la Nio in China. In their system you buy the car (for pretty cheap) and rent the battery. Makes upfront cost cheaper and batteries need replacing anyway so if you can swap batteries easily you never have to worry about this.
Charging with electricity is 10x easier remote than gas.
And makes you independent.
https://www.renaultgroup.com/en/news-on-air/news/kangoo-z-e-...
Let's see I still think H2 handling is a little bit more risky
You should probably read this:
https://hydrogen.wsu.edu/2017/03/17/so-just-how-dangerous-is...
I used to think it was risky as well, given Hindenburg, Challenger and all. The reality is that it's no more risky than gasoline, it's just different.
This is who EVs are for: People who own houses in the suburbs.
They don't work in cities. They don't work in rural areas. They don't work for renters.
EVs are for people who own houses in the suburbs.