From memory, you can also specify a batting order; in our case my wife and I are each other's first choice with our daughter after that. I think we also specified that our two grandsons follow her.
from what you say about her, i doubt the M-i-l lacks capacity in the matter of driving though, so probably neither (if that's what you are referring to)
It’s a whole load of things bednobs, we had a conversation with her yesterday and she was really confused couldn’t remember what we said 2 minutes before the all of a sudden very on the ball.
She keeps giving banking details to all that phone up and ask for it etc.
I know but when you leave written instructions taped on the wall by the phone telling her not to give out bank details and she goes ahead because’they asked’ you have to wonder!!