I have had PN for over 20 years, have numbness in feet and somewhat in calves -- I continue to drive -- I still have good flexion in my ankles (very important) -- I know by the pressure on the brakes and accelerator as to how to drive -- last year I drove all the way to Tucson and back (from Minneapolis) without incident -- my husband was the navigator -- I too, can't stand very long and have some balance issues -- but that doesn't matter once you are behind the wheel --- be a passenger with him and monitor his driving skills -- check for other cognitive issues -- hope that helps