It's funny how people make assumptions about technology use among the elderly - myself included. She got a 16GB iPhone a few years ago and filled it with videos within half a year.

She wants her photos/videos with her at all times, but then she would need at least 256gb phone which she cannot afford the contract for. Google photos was a perfect balance for this, as the app works very very well as a photo browser where everything is in the cloud - meaning she could offload all the photos and videos (at an acceptable quality for her [impaired] vision) from the phone.