A commercial driver has a physical every year, severe restrictions on how they can drive, hours behind wheel, etc. But if you have 2 cataract surguries, oncoming dementia, and a body full of arthritis that can barely move, you can drive a 50' Class A Motorhome to your winter home in the South.
Sounds utterly ridiculous I agree but there's something to be said for 60+ years of muscle memory, otherwise olds rocketing motorhomes off of cliffs or augering into the side of the local walmart would feature more prominently in the local news. Quit picking on paw paw and keep the fight where it belongs: suburbanite pavement princesses must die.
That person clearly can’t walk so that’s why they have to drive, right?