WhatsApp introduces ads in its app

I guess this was expected, but it makes me feel really powerless in the sense that I can't really move away from WhatsApp.

I have a couple of friends that I message via Signal and even convinced my dad to use it a while back, but here in Brazil WhatsApp is _everything_, and I doubt most people care about this at all. In my case, I'd love to just go over to Signal fully but then I couldn't talk to family, friends, and probably couldn't even book a haircut or pay my taxes (my accountant messages me on WhatsApp).

It's one of those where unless just about everyone were to go over to Signal, most people won't, because keeping track of messages in two apps is quite hard.

That leaves me stuck in this ecosystem, which is quite sad.

you should still slowly push for more ppl in family to use signal. In moldova as example most ppl used viber, but moved gradually to telegram and whatsapp. I've convinced my family/friends to use telegram in the past, but I'll slowly help them use Signal more. Changes rarely happen fast

What makes Signal less at risk than WhatsApp? Are they profitable in other ways? Are they at the same risk of capture?