They did that with Blackberry few years ago
It would take a large-scale public education campaign to teach people what it means when they see a warning message that reads "Peer key changed. Are you sure you want to proceed?"
If you need to be convinced, go ask your mom or dad whether it's immediately obvious what is going on when they see an insecure connection warning in their web browser. In my experience everyone just clicks through to "proceed anyway" without comprehending it at all.
Apple has great hopes for India https://www.msn.com/en-us/finance/companies/its-been-a-rout-...