GRA said:...
Of course early adopters are more willing to adapt their behavior to the car than the general public; they've been wearing coats, heated motorcycle jackets, blankets etc. as well as driving slower in the LEAF et al to avoid using the heat. But what percentage of Tesla owners, who don't skew as green as many of the other EV owners do, is willing to adapt their behavior that much in a car that costs more than twice as much? I suspect the answer is not a very large number, and decreasing as Tesla becomes better known to potential buyers (many of whom still haven't heard of it).
Of the twenty or so Tesla owners I know personally, none do this as a regular matter of course and only one has even come close to your portrayal when making long trips in winter. And even that will end as the supercharger network gets built out.