The 7mph claim is inflated. The rare EV gets more than 5 mi/kWh in any situation, especially highway driving, and your L1 charging is getting you roughly 1 kWh/hr.
> The average car is driving 60 minutes per day
This is a sleight of hand. Non-average situations arise all the time.
Your proposal is ridiculously burdensome and not especially helpful.
Of course. We already have blanketed the country with level 3 charging. You can reach 99% of the country solely using Tesla Superchargers. The non-average problem is solved.
What we need to solve is the "can renters buy EVs knowing they will always have reasonably-priced place to charge" problem.
12 and 16A L1 chargers are common which is 1.44 and 1.92kW respectively at 120V. Its not 100% efficient but they definitely deliver more than 1kW to the battery.
Owning an EV, I can confirm your numbers. I'm in a 240V country, but level 1 is still pretty slow. It's great for the home, but I'd want at least 3-phase AC charging when I'm out.
> The average car is driving 60 minutes per day
This is a sleight of hand. Non-average situations arise all the time.
Your proposal is ridiculously burdensome and not especially helpful.