Texts are pricey. Calls are inconvenient. Whatsapp is a de facto standard and I bet a big % of people who got a smartphone, got it because they needed it to use

Texts are pricey. Calls are inconvenient. Whatsapp is a de facto standard and I bet a big % of people who got a smartphone, got it because they needed it to use whatsapp, or use whatsapp exclusively.