That seems excessive. In many parts of the world, WhatsApp is the default app for texting people (ie the one you use to contact a plumber or a restaurant) and not having it means the phone fails at its most basic requirements.
People tell me this all the time. Yet I've never had a WhatsApp account and I do just fine.
The only problems I've had were a single barber that accepts reservations over WhatsApp exclusively - so I go to the barber two shops over and don't need a reservation. And some women from dating apps refuse to talk on the phone before talking over WhatsApp. That's fine, there are plenty of fish in that sea.
