How did you convince your friends and family to embrace privacy?

So I've been slowly adopting better privacy practices like a private email, aliases for social logins, degoogling etc. Now I'm thinking about switching from WhatsApp to Signal.

The hardest part seems be convincing people to make the switch. How did you manage to change their minds in terms of general privacy? And like specifically for communication such as WhatsApp, which has a monopoly, how would you go about it?

change email etc family friends logins manage people practices privacy private signal social switch terms thinking whatsapp