what is a kW/hr?
and those 50 mi are each way.
There are no “free” outlets here. You telling me that those block heater outlets are unmetered?
KW/HR is a measure of battery energy capacity and small EVs often get over 4 miles per KW/HR
The figure was for commuting, that means both ways for most people.
They used to be and were only switched on for about 3 months at work during the coldest parts of the year, The point being it is possible to put 120 volt charging anywhere and technology could even use your car ID to automatically charge for energy, at work or anywhere you plug in at that power level.
Your circumstances are different than most people, so you must do what fits your lifestyle and economic needs the best, as will most people. EV's won't sell if people don't see an advantage to owning one and home charging would be on along with cheap power rates!