It's not that easy in many parts of the world.
Whatsapp became the standard communication not only with your friends, but also businesses.
You talk to your bank manager via whatsapp and your doctor etc.
No Whatsapp, no talk.
No Whatsapp, no talk.
My dermatologist also offers a whatsapp address where you can talk to her assisstant.
My GP communicates via iMessage.
Well i guess it sucks to need an ambulance when whatsapp has its maintenance window, guess people will just have to die