From my personal experiences, comfort. People will not do things if it's a little new or different....
I've been trying to get my friend to drop unsecure channels... Like moving to anything other than their default chatting app but ... That involve them installing the app and apparently that's and insane ask. I got like few of my friends converted... But all were already tech savvy folks that didn't find switching apps and issue.

no songmeanings.com, ok...