At least here in the Netherlands it is what SMS (texting) used to be and then some. Even the help desks of many companies can be directly reached over Whatsapp.

At least here in the Netherlands it is what SMS (texting) used to be and then some. Even the help desks of many companies can be directly reached over Whatsapp. I think I know only a handful of people (mostly elderly) that don't use it. It is the standard. Personally I'm trying to get people to use Signal. I'm using it with some friends now, but non-techy people are all Whatsapp.