Some of the responses have veered somewhat from the original question (danger in not having a land line) to the pros and cons of having cell phones.
That's seems OK to me, in that currently, cell phones and land lines are two sides of the same coin for most of us, but if the OP or anyone else feels strongly that we ought to have a separate thread about the S&T aspects of cell phones, let us know. I don't see that there has been one in the last two-plus years.
Discussion of cell phone usage, coverage, etc. is useful insofar as it relates to S&T, but as much as I also dislike aspects of our rude cell phone society, lets' try to stay on point.
What not to say in public from a security standpoint would be on point. Irritating people in line for the register would not be, unless one can make a connection.
Again, should you all (the social "Y'all", not a unanimous opinion) want a separate thread, I'm all ears. Don't like polls much, so I'll just listen to the discussion.
To complete the thread veer or to toss in something for a new one, I thought this might be worth sharing:
More than a dozen years ago, some volunteers in Dade County, FL noted a marked decrease in crime in some neighborhoods in which they carried cell phones; they thought there was a deterrent effect even from the potential use of cell phones, they opined that people were more willing to report crimes; and they observe faster response to in progress incidents.
http://americancityandcounty.com/mag/government_cell_phones_reduce/
I've wondered about that for some time. The article about Dade County is old; I saw my first car phone only about a decade before it was written. Someone recently said that computer and communication technology advances are measured in intervals like dog years.
From a personal point of view, I really do not like not having a charged cell phone handy all the time