My 93 yo father in law still drives. I periodically look over his car to see what new colors of paint he has added to the quarter panels. He occasionally backs into someone at the bank, grocery store or local restaurant. He pays his own insurance and pays off the people he has hit.
Would I ride with him? Absolutely not.
I’m not in favor of yet another intrusive technology. At the same time I hope my kids will recognize when my husband and I should no longer be driving.
My FIL had dementia and taking away his car keys was so sad. He loved to drive but he became too dangerous. He fought us on it, but his neurologist had a driving simulator test that checked his reaction times, judgment and other things. He told my FIL that he absolutely should not be driving, that several times in the test he had made choices that could have caused an accident or even killed someone.
FIL handed the doc his keys that day. We were so relieved.