It's 7 mph of charging. The average car is driving 60 minutes per day, and if there are chargers everywhere that's 161 miles per day of charge if it's plugged in when not driven.
That covers everything the existing system doesn't already.
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.
That covers everything the existing system doesn't already.