DEAR ABBY: My oldest sister has it in her head that since she’s home all week, she needs to go out every Sunday. She started calling me every Saturday to invite me to accompany her, which I did a few times. In doing so, I realized she has mobility issues and the beginnings of dementia. She wants to go to these certain places where we would always go. Other friends and family members used to accompany her, but no longer do for liability reasons. Hence the reason she turned to me. Apparently, she refuses to accept her limitations.