I mean for context, in those countries Meta paid to setup these networks. They're not a government-enforced monopoly, you're more than welcome to start a competing network.
Countries like Mexico or Spain have adopted it as the default form of messaging. Only today I used it to chat with our lawn maintenance guy, our car washer, and someone who's repairing our espresso machine.
I could maybe try to convince friends and family to use another app but I won't be convincing an entire country.
