My mother is giving up driving. I'm glad. No-one (not even as good a driver as my mother) should still be on the roads at 90+. Now we have to help her re-organize her life around this new reality. I don't think it should be difficult. We've already done some preliminary research. There is, among other things, a local charity (apparently connected to the church) which links people up with volunteer drivers.
My mother was an army driver during the War. She used to chauffeur minor VIPs around the South East.