Is this a genuine concern in Northern America? How often do you need to take a 16 hours road trip in a car?
My Volkswagen ID.4 barely does over half the rated distance when it's cold here in Denmark (below 0℃), so I wouldn't dream of going on a longer road trip in it. You will also be going quite slow as speeding over 90 km/h will drain the battery much faster and there really aren't that many fast DC chargers along the way either.
Some of it is my own fault as I never charge it above 80% unless I really need to go somewhere out of the way.
I mean I take the drive listed 4-8 times a year. I know a lot of people who will drive the same or more to visit family over the holidays.
Last time I drove to my parents home in Florida it cost me 350 in gas and my wife came with me along with my friend. If we flew it would likely be $400-600 a person and we would still need a car while we were down there. Its a huge savings. I have another friend who just drove from Chicago to Edison and that is about a 12-13 hour drive.