The need for a cell phone is different for each family. I know we needed one because we were in 3 places at one time, for most of our waking hours.
We also had tons going on and responsibilities to too many other family members that we are responsible for. , so we had to have a cell phones for each one of us for true communication reasons. .
Try to find a payphone. Good luck with that and then some of them will only accept certain cards, not change. Schools do not always allow kids to use the school phones and once the buildings are locked, there are usually no payphones outside of the school .
When people used to tell me, I would never..children and phones, silly, waste of money.. .. cell phones, are ridiculous, blah, blah, blah, I used to wonder why they had to tell me? I did not care about their kids were never going to need a phone.. and I do not know why they cared we did because I knew we needed it for our family's communication and to feel safe. .
Just let her think you are listening and say, "oh, yea, you have already told me that." Then just go on about your business,. Could be she does not think you can hear her.