I'm not saying what is good to use. I'm saying what is used. Everyone from grandma to the local store. If you want to survive communicating, you need to use WhatsApp everywhere in the world except the idiotic USA.
I personally use other apps like signal and telegram, but I also have WhatsApp because I have to and it is convenient enough. I'm ok that Meta gets a bit of data showing the amazon delivery driver and I shared a message at a certain time. It's useless data.