I'd love to move out of Whatsapp, but in Mexico and Spain literally everyone is using it.
The other day I ordered take-out exclusively from Whatsapp. The company where I work recently implemented user support using Whatsapp. I buy coffee from a nearby roaster and he informs me the day before roasting so that I can get fresh coffee. I also know lots of parents that communicate with schools and create groups with other parents.
Not to mention it will only become more entrenched since carriers at least here in Mexico don't count Whatsapp/Facebook towards your data usage, which is pretty awful if you were ever hoping for a competitor to emerge.
Same for some SEA countries (Malaysia & Singapore), whatsapp (some includes other popular messaging apps such as WeChat, FB messenger) messages/calls does not count toward your data usage for most telcos and it is the main way people communicate, Whatsapp basically replaced SMS there when it was launched.
The other day I ordered take-out exclusively from Whatsapp. The company where I work recently implemented user support using Whatsapp. I buy coffee from a nearby roaster and he informs me the day before roasting so that I can get fresh coffee. I also know lots of parents that communicate with schools and create groups with other parents.