@johnna16 I had difficulty convincing my husband that he couldn't drive anymore. The day we got the diagnosis of dementia (ftd) caused by alzheimers, his doctor said he should stop driving. I was pretty much doing all the driving by this time anyway because of his memory issues and i was relieved that i wouldn't be the bad guy by telling him this, but it didn't really register with him for SEVERAL months. When we go out he would ask if he could drive or say " i KNOW how to drive!" I would go along with him and agree that yes, he did know how to drive and then immediately follow it with " but i like driving you around. I'm your chauffeur, so just sit back, relax and enjoy. This way you don't have to concentrate on anything and you can just look out the window and people watch, watch things moving around, etc" After MANY MANY times of having this conversation, the conversations stopped and he no longer asks about driving.
I know that everyone's situation is different and I hope you find what works for you with the driving.
Take care, hugs and prayers