I'm not sure that there's a deep cultural issue with this, I think there's a pragmatic issue. 99% of television drama can be replaced with a text message. It's incredibly difficult to tell a suspenseful story when everyone can communicate with everyone else instantly at any time. Can you imagine The Shining in 2020? The guy would be driven insane by browsing reddit. This is why it's very difficult to make modern TV programmes that have realistic phone use.