“Normal cars can run out of gas on “a long detour,”
Well of course they can, and when they do autoclub can show up with a can of gas and you are off again in seconds. You cannot have someone deliver a can of electricity. If you run out of juice in an electric car, your only solution is a tw.
Tow
Actually, yes you can - just on technical principle. Of course, these days AAA et al. aren't geared to do so (though they have, of course, electrical systems that can give you a -slow- charge). Imagine a road service with a high-capacity on-board electrical charging unit. Technically very do-able, just not available.
Let's not confuse current (heh!) availability (what you are referring to) with what is technically possible.
But as it stands today, I would not buy a purely electrical car (or even a hybrid - but that's just me looking at what is offered on the market).