> Put the chargers where the cars are parking.

That would really be doubling down on the high cost of free parking. https://en.wikipedia.org/wiki/The_High_Cost_of_Free_Parking

I'm of the opinion the cost of climate change is likely to exceed the cost of free parking.

Great, so replace all the ICE parking lanes with electric bus rapid transit lanes. It will do much more for climate change than car chargers.

Edit: Should have mentioned the climate change is one of the biggest components of the cost of free parking. Without all the government-mandated parking spaces for the past 60 years, there would be far fewer cars today. It's not too late to reverse that.

Then the power source of for cars needs to be more available than what you're suggesting.

If addressing climate change is the goal, existing vehicles can be converted over to methanol far more cheaply than buying a whole new vehicle. Methanol can be made carbon neutrally, or carbon negatively, and will power the next generation of cargo ships.