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That's hugely incorrect, most of Asian, Europe have whatsapp numbers listed, not phone numbers.

That doesn’t really align with my experience in Europe or Japan - do you have a particular country in mind?

that's 100% wrong, i live in europe in a whatsapp country and no listed phone number EVER has an associated whatsapp account

so don't downvote me if you're in india and certain countries in sa asia where that is the case but that's not the whole world outside the us