Sure it is possible, in theory, in practice it is not happening in Europe and seemingly it is not happening in the US as well, no idea if the cited US$ 600 savi

Sure it is possible, in theory, in practice it is not happening in Europe and seemingly it is not happening in the US as well, no idea if the cited US$ 600 savings per household is accurate or not, but if it is, it is a tiny amount, when compared to the initial cost increase of the EV. Broadly speaking, the "economic" car price for an ICE car here (Italy, but prices are not so different in other EU countries) is roughly in the 17-25,000 Euro range while the "same" car in a full electric version is (still roughly) in the 28-35,000 Euro, or at least 10,000 Euro difference. In ten years/200,000 km, the gasoline/petrol may be 20,000x6/100x1.8=2,160 Euro per year, let's make it 2,200. To make even the electricity for 20,000 km should cost 1,000 Euro per year or less, i.e. less than half, it being "cheaper" (which currently does not happen as due to a number of reasons electricity is currently very expensive) is not enough. In the US you have much cheaper electricity (but also much cheaper gas/petrol) while I believe the difference in buying an ICE car vs. a comparable EV is the same or more, the projected 600 US$ will need what 20 years to compensate the initial excess spending? BTW there are the "moral" implications of driving a "zero emissions" vehicle and thus being good for the environment, but financially it isn't seemingly not standing even in the US.