[dheera]

Family is easy. They have a necessity to keep in touch with me, so they'll use whatever I tell them to.

Friends is the one that's hard. In my case it's WeChat not WhatsApp. I only use WeChat because a huge fraction of my friends use only WeChat and nothing else. Considering the stronghold WeChat has in China now it's almost impossible to get anyone to switch at least until something else in China can compete with it.

I have a separate phone just for WeChat because of the number of egregious privacy violations it appears to execute on my phone.