I imagine this is geographic. Texts are quite expensive in some places, and that means people use alternatives instead. Also some people had pervasive mobile ph

I imagine this is geographic. Texts are quite expensive in some places, and that means people use alternatives instead. Also some people had pervasive mobile phone usage for a long time before smartphones made other options available, which I imagine would add to their popularity. Here in Denmark SMS is very entrenched, but I know it varies in other countries.