When we moved to Bangalore over ten years ago mobile (cell) phones were already proliferating, and every dinky little fly-by real estate agent or grocer flashed one, even though they were very expensive to operate those days. Now they are ubiquitous, everyone not only has one various people demand the numbers and when I say I don't know mine they don't believe me. I do have one - for emergencies. In a class I was attending they discussed how long each one spent on the mobile - and again were zapped that mine was less than five minutes a day. Now that I am not going there it is less than five minutes a month.
Landlines are good enough if you do not have to call while travelling, and most people who do use it while travelling are not doing it because they have to. No one has a disaster when a phone is stolen, for example, no deaths or other such happenings have been reported due to being out of reach temporarily. But the reason for not using is more than economy or conserving unnecessary actions - it is as simple as not willing to experiment with health. It is not so simple though - even if you don't use it you might be affected though perhaps less than if you did overuse it yourself.
On news recently they warned against use of phones by children, pregnant women, and once again confirmed what I had thought all these years, in fact what had been reported nearly a decade ago - about risk of damage to brain through use of mobiles (cell phones) - and advised people to have radiation proof windows and curtains. Not that it will protect anyone who either uses a cellphone or is out in company most of the time - radiation is like tobacco smoke in that it will affect you just as much from anyone else using it, but in this case there are the towers too, so if no one uses it in your vicinity still the radiation might be around and be just as bad enough. No one is going to curtail or reduce much less forgo the use of one, though.
I don't know what people are thinking.
Sales people keep calling if you have your phone on, and they are persistent and not willing to either let you go or understand that calling like this is beyond the limits of civil behaviour in the first place. They do that sometimes on land-line as well, and won't stop until you are extremely rude. Or not picking up at all. They don't care if you keep telling them for fifteen minutes that you are in the middle of your meal, or that you don't want whatever it is they are offering - they talk in a tone that is full of an urgency of life-and-death sort. So you have to be rude, in every way possible - cutting the call simply invites them to call back over and over.
I don't know what people are thinking.