Car insurance when owner is diagnosed with dementia

WellThatIsAProblem

Mother-in-law is a car owner, but hasn't driven for nearly a year. She has increasing difficulties with dementia, and her car insurance is coming up.  Car still kept so that daughter can drive her places, with the walker/trolly fitting in the back of the car (daughter cannot fit it into her own car).  Daughter is named driver on her mother's car.

Can mother-in-law remain car owner/keeper and the policyholder, even though she will never drive (and should not)? Other than informing insurance company/DVLA, any other changes needed?

Thank you.

born_again

Daughter should be main driver of mil car. If mil is not driving.