My mother is in her eighties. She is very much of the old school, hates to be called darling, love, anything like that. She is very proud. She has had times in her life where her pride was literally all she had. God help you if you shorten her name.
When she was really being put through the health care mill, with invasive tests etc, several a week, she was feeling frightened, angry, defensive and vulnerable. She was always polite and deferent, as people of that age often are when it comes to medical professionals. But being called love, darling, etc, it really made a horrific and stressful, very disempowering, situation so much worse. This is a woman who hardly ever cries. I narrowly missed a flying hairbrush as she cried tears of pure rage at that last tiny indignity being heaped on her head. (She wasn't aiming - I walked through the door at the wrong time!)
It really is such a small thing. But all that needed to be done, was ask what she wanted to be called - it's one of the most common English surnames in the world, and call her Mrs X. To be treated like an adult, with dignity, with respect, with courtesy.
Pretty much what we all want.