......all people are different
my Father in law will be
92 in a few days
and his mind is still razor sharp
he didn't want to give up his license either
and technically he doesn't have to as he's experiencing
no dementia thus far.
So unless your Dad can start taking brain booster vitamins
such as ginko biloba that increases oxygen to your extremities
(your head) and get more exercise to oxygenate himself out of his stupor..........
(it's like he's driving in his sleep)
you should again intervene by having the RMV (dmv) re-give him
a drivers test to see if he can pass it. If he refuses to do so
automatic suspension.
It's
tough love and i mean no disrespect
but your now at a cross roads of saving the life of the other motorists and or their kids
as well as your Dad's life.
Just my opinion of course.