My MIL is in her late 80s and lives on the other side of the country from all her children. She is a very nervous type but drives everywhere. All her kids agree they wouldn't allow their own children in the car with her as her driving is so awful, but no one wants to do anything about getting her off the road. They say she would be lost without her car and this is true, but as far as I am concerned her independence should not come at the expense of the safety of the people who live in her town.
She's not my mum so I can't step in, but it seems so, so wrong to me that she is on the road.