I can't switch from Whatsapp because my close relatives are on Whatsapp. I can't persuade them to switch because they are quite elderly and their close friends

I can't switch from Whatsapp because my close relatives are on Whatsapp. I can't persuade them to switch because they are quite elderly and their close friends are on Whatsapp. Moreover, the video chat, and the ability to send documents directly from Whatsapp are the reasons why many working professionals keep using Whatsapp. Signal is not there yet in polish, unfortunately. To me, it's not a Whatsapp versus Signal debate. It is about communication tools being consolidated into behemoth social media platforms. I don't think Signal is immune to that. We probably need an Ida Tarbell for the information age.