This is so sad and crazy. When my parents were still alive, they could barely manage their VCR. Someone had to repeatedly show them how to get back to the TV mode when a video was done playing! And my dad (a long time elder) was very mechanically savvy all his life, he could fix anything, so he was not stupid, but modern technology would be beyond him.
Can't say for certain what other churches are doing, but in my job I am often out on Sunday mornings. I pass many churches and see people going in, and you know what? I see lots of Bibles in hand but nothing that looks like a tablet!