Alas, in my country WhatsApp is obligatory. Everyone uses it, businesses and banks included, and no one, at all, uses SMS. Most don't even know what SMS is for, all they know is they get random spam by their ISP, and sometimes 2FA bubbles, on an app called "Messages", but that's it.
Now, technically it's possible to go without it, but life becomes so much harder it just isn't worth the hassle.
Now, technically it's possible to go without it, but life becomes so much harder it just isn't worth the hassle.