I'm guessing. Though I'm in the US but also in grad school. With a large number of foreign students there are similarly a large number of WhatsApp, Telegram, and WeChat users. I suspect this problem is very Americentric. India was able to get all its old people to use WhatsApp and multiple apps, I think there is a bit of an overreaction going on here. You'd think the world is ending for a feature most people didn't know existed (despite it being a prompt during signup).