Scoop, went thru that with my Mom when she was 95 or so. Took some strong talking but she finally admitted I was right. Kept her car, but had a friend drive her places. She lived in a different town so 80 mile from me at the time.
One of the "tough love" things we kids have to go thru with our parents. I pity my kids when they try to take my motorcycle.

I would LOVE it if she would do that, but MIL is VERY independent minded and "doesn't want to be a burden on anyone" (sigh). That is exactly why I'm here.
Her phone has been ringing off the wall with spam calls - I was about to move her number over to the service the wife and me use that has Telemarketer block (enter a "random digit" to connect) when I decided to see if any spam filtering was available on her Google fiber phone - turns out they are available and were NOT turned on. Turned them on and we will see what happens. If that still lets too many through - I'm ready to port her number to our service as an extension on our account.