I am in awe of all you techie people! I have a mobile phone which, much to my grandchildren's disgust, rarely use and have to be reminded to take it with me when I go out. I still prefer to use my landline when I am at home - free calls with broadband package - and frankly I am happy not to be always available.
I am sure mobile phones are a great invention, but I am appalled when I see people come into a restaurant and the first thing they do even before ordering is to take out their phone and start looking at it, ignoring their companion(s), Very rude. Is there something so important that it cannot wait? Just as bad is the "I'm on the train" messages, always shouted loudly so that everyone can here. I once had to listen to lurid details of a passenger's love life for nearly an hour. Too much information!
As you will gather, I am a fully paid up member of the Dinosaur Club!