Have them buy a Tesla with Full Self Driving. As a bonus, if they croak while on the road, the car will turn on its flashers and slow to a stop. Seriously, Tesla Full Self Driving is amazing. Just say “Take me to Safeway” and it will take you there. It will even park itself. You still have control over speed and aggressiveness.
Or, the Tesla will see you’re old, and euthanize you.
/sarc, sort of.