You live in a bubble. Either that or I do. because what you are saying is completely bassackwards from reality where I am. If verizon phones can’t get service in a given area, then no one can. If there’s only one phone that works in a group of people, you can bet your ass it’s a verizon phone.
We’re not talking about just phones. We’re talking about phones + data - we have field reps who MUST be able to VPN in to the corp network to do their jobs.
In the more remote sites they travel to in the US, they are often the only people on site with usable signal at all. Notice the word ‘usable’. VZ phones and data cards will often claim they have signal, but then either not make the call/connection, or be unusable. Still.