It's not a hard concept, and it's not just tech people who care about it. It doesn't require any knowledge of tech to understand.
On the other hand, she knows how to use FB messenger and my efforts to get her to switch to email/telegram have just caused confusion so far.
My apologies for the imposition if that’s not the case.
[0] https://www.techrepublic.com/article/j-edgar-hoover-would-ha...
They call everything "a myth" and then cite strong circumstantial and testimonial evidence that those "myths" are true, only to dismiss everything with hand waving about how "we'll never know" what his extremely private and mysterious sex life was like. Give me a break.
To be honest, I'm not well versed in the debate of privacy, but invariably in discussing user tracking by BigCo's a lot of my friends just say "I don't care if they have my data, I've got nothing to hide."
An example in the first case is that you'll want to buy a secret gift for someone, but because of the tracking the surprise will be spoiled because they'll be seeing ads for it on their systems.
when was cross-platform messaging ever new?
... IRC, AIM, etc ...
This is in relation to iMessage vs BBM vs whatever was popular on Android at the time.
(And they got on boarding, group functionality and UI better than anyone for a very long time)
The move can be made faster now because groups are so prevalent on WhatsApp.