I just want to get some idea of how usual this is.
Dm will not use cash machines or sign up to online banking because she thinks she will be a victim of bank fraud. I think this is rather paranoid as long as sensible precautions are taken with passwords, checking there isn't anything around the cash machine slot etc. Ironically Dm ridicules another relative who won't buy anything online because she might get "robbed".
Dm is only 63, and it concerns me how she seems old before her time in some ways. She refused to use chip and pin for ages and insists her bank issue her a card that is not contactless.