Older people don't always understand it they are stuck in their ways and don't always except people are different. X
Bingo!
Younger people don't always accept that people are different either, and that some of us aren't welded to our mobiles or have rubbish mobile signals where they live 
A phone is a phone. The reluctance of people to actually talk to others is bizarre
I agree. I don’t believe that people are more time poor than 20 years ago. I get the impression that people are so much more self-important about being contacted these days. I also agree with @LinemanForTheCounty that a quick telephone conversation is much, much quicker than batting messages forwards and backwards.
DD rang DH on the landline from the car the other day to ask him to put the oven on. The call took 14 seconds. DH doesn’t always have his phone on him, and it doesn’t occur to him to check it often, so ringing the landline was the most efficient way to do this.
I have a smartphone, I text and use WhatsApp but I sometimes prefer using my landline because my hearing isn't great and it's generally clearer than the mobile
I agree @pigsDOfly. I also use Messenger and Teams/Zoom, plus I find it convenient to have a landline along with a mobile and a laptop. I like to keep all my options open as we have family that aren’t local and need to be contactable in an emergency.
We are so old school @Zandathepanda 