On the other hand.....
I have an iPhone on my belt, and I can't imagine being without it. Not that I am constantly using it, but I do use it many times during the day, mostly for internet, but also for phone calls and texts. I'm 61, so I'm not a teenager. I'm just old enough to realize how amazing these devices are, and how fortunate we are to have them in the palms of our hands.
Sure, having a phone for emergencies is a no-brainer. But they are also great for having when you are trying to sell on Craigslist. To receive a call or a text from a customer is much more immediate than waiting to check your email. Giving directions to my house is a snap--just copy and paste a paragraph from notes saved on the phone. And for those people who couldn't find their way out of a paper bag, they can call me multiple times until they find my house.
I often think back to the years when I was always going on service calls and deliveries with my father. We had to plot our course by looking at a map before leaving the store. Our only phone contact was using one customer's phone before going to the next customer. Sometimes, finding that they are not home, when they said they were going to be home.
I still prefer to read a map before going anywhere, but one of my favorite apps is Google Maps. The fact that you can pinpoint your location on your phone, and can display (and zoom into) any map, literally anywhere in the world, is still amazing to me. Not a fan of GPS. I'd rather find a location using my own sense of direction, with help from the phone.
No, I do not talk on a cellphone while driving a car. That's what voice mail was invented for. I couldn't possibly text while driving, either. Fat fingers don't always hit the right keys, especially without the assistance of reading glasses. Driving does not require reading glasses. Driving requires concentration; I sometimes don't even talk to passengers in the car when behind the wheel.
As for being annoyed by other people staring at their phones, bumping into you, or broadcasting their personal business out loud, I can live with all that. It's the world in which we live. There are all kinds of people, and if they don't want to exchange pleasantries with me as they pass me by, fine. It relieves me of the obligation to be nice to them.
Last week, I was hiking in Acadia National Park. When other hikers passed us going in the opposite direction, they all said "hello" or "nice day", etc. I'm really not accustomed to such chit-chat in regular daily life. I don't live in Mayberry; I live in a medium-size city.
All that being said, I think that the internet is one of the greatest inventions ever. Information and knowledge are more universal than ever before. The smartphone is just a convenient way of being connected with the world.