It's definitely tough, but a big perk of WhatsApp is also the data-calls (instead of paying for long-distance). Maybe next time I visit I can try to help convince them to check out something new, but I also ended up dragging a couple of social groups onto WhatsApp to organize events, chat, etc just by viture of it being what most people use. Especially over in Europe, it's very heavily used and not easy to replace, as it's sometimes the de-facto platform for communication.

But it's definitely a trade-off, so I at least kind of have a choice.