That’s not realistic, messengers are much more ubiquitous than any other kind of software and are mostly used in a family/friends network. We had our local digital festival last week an we had school classes teaching seniors WhatsApp.

I'm sorry that you don't think it's realistic that not every family uses IM to stay in touch.

It's still true though, and the existence of some people who do use it doesn't nearly mean that all people use it.

I've no idea what the GP commentor is talking about. I don't know of many families that use messaging apps. Yeah, texts, a bit, but most of the families around me don't do this. Heck, most of the kids don't have cell phones until they get into HS, and event then, the phones are banned during the school day.