That touches a nerve. Fortunately my wife and I [both in our seventies] have reached an accommodation after 50+ years of animated discussion.
Tricky route: the best map-reader/ navigator/ weatherman in the world navigates. The second best driver in the world drives.
Night driving: the best night driver in the world [senior management] drives. At least she can see. My role comprises check list [lights on?] and catering.
Other driving: 2 hours on, 2 hours off, modern satnav, bright red car, lights on regardless.
So far so good.