I don't think it's necessarily a strange attitude, just more about what people might use email for versus what they might use instant messaging for - which targ

I don't think it's necessarily a strange attitude, just more about what people might use email for versus what they might use instant messaging for - which target audience. My Signal experience mirrors yours, as I think folks really don't care too awful much which app is used, so long as everyone can use it together to chat/communicate as possible work peers, friends or family. Email, however, is the line item on every single one of my bills (utility, credit, etc.), my mortgage, my doctors, my bank accounts - a cornerstone of what it takes to live in our modern society. Migrating to a new email address is daunting (to me) due to all these arms and legs having had this email address in use for ... 2 decades? (however long GMail has been around). It can be done, but it's a lot more work to go through for the average individual than just installing a new app.