I tried to tell my dad that I should use GrapheneOS without a carrier and use Wi-Fi only. I’m trying to switch from iPhone. But then he gave me a counterargument and said, “Son, what if you’re stuck on the side of the highway with a broken down car or you need to call emergency services and you don’t have Wi-Fi?” What is the main counterargument to this?
You could always prepay a Solis 5G WiFi Adapter and carry it with you. Some are quite small and portable.
That said, Apple doesn’t have a monopoly on cell carrier service. GrapheneOS works fine with various phone carriers.