For me I have to rent a place and my cell is my communication to the world and friends and family other than online.... if I did not have the phone I am literally lost.
In fact I have lost it a few times and had to go without for a bit and that was hell I had no phone to call anyone to ask them to call my cell and see if anyone picked it up and where from. I had to email and wait and wait since there is no guarantee email will get answered immediately.
So there are 2 sides, I am single, and live with a couple of college roommates now... they moved in a little while ago so in and out and I have their #s on my cell in fact everything and everyone important it on there.
So yep for those that have regular phones is one thing but for those without a landline per se a cell phone is a Godsend and a lifeline and yes I have used it in our condo complex to call the cops too since sometimes this place late night and early morning people get in trouble or cause it so a cell is invaluable there too with the GPS on 911... a poor barely 13 yr old was attacked walking home with a friend by a couple of older 17/18 teens out drunk and whatnot. So yep a cell can be good as an adult. Though my 13 yr old niece has hers with all the functions and she shows it off so I hope I do not get many texts I do not like those that much but I do prefer just a call saying hi or a picture of whoever especially from my oldest niece showing her 3 kids including the littlest standing up on his own haha..
RAISES hand I am a slave well sort of to the cell I just keep it close just in case and charged but I do not use it that much actually it is just a comfort to be ABLE TO WHENEVER or have whoever needs me call.
Thanks for letting me ramble.