All things have defined limits; Your gasoline will stop working at like -40 F. And while ICE vehicles have reliable mileage in the winter, they are absolutely prone to issues related to extreme weather. Also, I'm curious where you get the 30 requirements from, since for the most part it's basically just having an outlet installed. Not everyone can do that, sure. Not everyone can ride a bike to work, either. What's the point of this flippant crap?