I was able to avoid WhatsApp until we started our current multi-year sailboat cruise. All the local cruiser communities are on WhatsApp. So when we got to the Canaries, I created an account.
But I'm making sure WhatsApp will not be used for anything outside this context. That way I can nuke it when we're back home.
I use Whatsapp daily (as does everyone I know) and there's no way I'm buying anything from Meta.