I think the policy will work fine in French cities and for travel between cities. Already, one has no need for a car when in those places.
In the rural regions and travel between and among them, I cannot say. I suppose it could work out well, but for it to do so, there must be some combination of the following advancements in transportation technology and/or energy delivery:
- a faster way to recharge batteries
- batteries with greater energy capacities
- a power network whereby cars draw electricity from "third rails" of sorts embedded in the pavement or running above the pavement (as trolleys used to).
If the batteries are insufficient, the infrastructure should provide the means for an easy exchange at the former patrol stations. This could be faster than refueling.
Also, home recharging over night is a fantastic solution, even if it takes ours.
Did I miss a major development in automotive technology? Have the French invented nuclear powered cars?
Electric energy has a source and it must be sufficient also in case dozens of millions of cars are being electrified. If the source is nuclear and it will be nuclear in France, then the cars are nuclear powered. 70 % of France´s households heat with electric energy, they are nuclear powered households.