This. We bought a small EV a little over a year ago, and I expect our personal gasoline reduction is close to 50% -- easily more than half our trips are now in the EV. However, the grid in our area is primarily coal-based, so I'm aware we're just shifting. I've begun my own solar charging project to address that, but its expensive and will take multiple years to get ROI, and is clearly not for everyone. My thesis is diversification -- having 100% of the average family's transportation needs dependent on gasoline creates (or creates potential for) lots of problems. Frankly the infrastructure is not there (in my area) for everyone to go 100% EV, but I'm in favor of experimentation and diversification.