She is old enough that she grew up with a land line only. Lots of people just assume that everyone has a mobile phone just like there was a time when people thought that everyone had a computer. I still know people that don't have a computer or any wireless devices.
Oh wow she should know better then!! Lol but I guess it’s just hard for some people to believe that some haven’t kept up with the times so speak and gotten a cell phone. But some people just plain don’t want to lol and I totally understand that. But wow really!? None at all!?