Which profession requires WhatsApp?

Literally any profession where you publish contact information for customers to reach you. They'll be _angry_ if there's a barrier to communicate with you, and lack of Whatsapp, for some countries (I think particularly EU, south America) would be seen as such a barrier.

You may as well post only a UUCP bang path or a Telex identifier as your sole contacts, that's how baffled half of the people would be.

I installed WhatsApp for the first time in my life just a few days ago because I needed it to communicate with some event organizers at my current holiday destination. Once I'm home again I will uninstall it again and will probably not have a need for it before I travel somewhere else where it's used.

For the record, I am from Denmark which is in the EU. If people here use WhatsApp they are either expats or they need it to communicate with foreigners.

Maybe not hard required but it's such a common way to communicate with colleagues and customers in the EU. Not having whatsapp would be similar to not having a phone number. You might not get fired for it but you'll be known as "that weird guy that doesn't use whatsapp" and it won't do your carreer any good.

You cannot believe how fast people learn how to configure VPN. Or switch to another social network/messenger. Once one network is not available for everyone. Tested after FB/IG has left Russia.

The force of meta is not just addictive algos (algos are pretty shitty), but that is is available for everyone and everyone is on the network.