As it's been said before, it's very geographically dependent.
In here, there isn't a local shop or service that doesn't advertise its WhatsApp number. Even the city hall's ombudsman answers via WhatsApp. Not email, not phone.
I'd love to be able to communicate through open protocols such as IRC and email alone. But that's not the world I, and I would wager, most, live in.
As it's been said before, it's very geographically dependent. In here, there isn't a local shop or service that doesn't advertise its WhatsApp number. Even the city hall's ombudsman answers via WhatsApp. Not email, not phone.
I'd love to be able to communicate through open protocols such as IRC and email alone. But that's not the world I, and I would wager, most, live in.