I agree charging at home/work is best, and ideally we would have ubiquitous slow charging at apartment lots, workplaces, and on the street. But that’s not really realistic right now in the U.S., and more importantly, it isn’t under Tesla’s control. Whereas they could have solved the problem for people with less charging access by making their fast charging faster like BYD has done.
With respect to your phone analogy, if I weren’t able to charge my phone at home or at work, I would definitely be interested in being able to fast-charge it at some conveniently located business