If they can't be bothered to email or send an SMS to me or use Signal or video call via the multitude of alternative messaging services (Duo, FaceTime, Skype, Signal etc. etc.) I don't think they're that bothered about being my friend are they?
If their friendship hinges on me using a specific mobile app, that's a shallow friendship.
Particularly, this social capital is at its minimum when you're trying to develop new friendships. Good luck starting any when you refuse to use the app that everyone else in the area uses to communicate.
In this instance, if developing friendships relies on me sending my data to some unknown person the other side of the world so that they can build graphs on my activity and follow me around just because everyone else has decided that's what they want to do, then I would choose another path.
Wouldn't you? If not, please send me all your data and details of your activities, all the time. If you can trust that data to some guy you've never met in a datacenter, then why not send it to me. You've got my username - that's more than you'll ever know about the people looking at your data at Facebook.
Other people are saying that in their countries, Health Services and bank transactions are coordinated via WhatsApp.
It's not just about messaging your friends, and for many people, "opting out" of WhatsApp is not a viable path.
[1] https://news.ycombinator.com/item?id=25669702
[2] https://news.ycombinator.com/item?id=25669600
When you sign up to any service, they ask for an email address. They don't ask for a mobile number necessarily, and there is never a "my mobile number is on WhatsApp" checkbox. Why is the assumption of the organiser that you're on WhatsApp your concern? They have assumed you're on a certain platform, and it's their mistake.
It reminds me of the tidal wave of people suddenly abandoning their own websites and instead using "Find Us On Facebook". They might as well put "Use this keyword on AOL".
Facebook is not the internet, and WhatsApp is not the only communication method.
Looking on Amazon.com, a Huawei P Smart 2019 (32GB, 3GB) 6.21" FHD+ Display, Dual Camera, 3400 mAh Battery, 4G LTE GSM Dual SIM is $209.99.
I think some have assumed that he went out and bought an iPhone 12 Pro Max as a second phone, and we don't know that.
But I agree privilege is vastly overused.