Driving instructor Heike Hilbig does voluntary driving checks with older people. In Germany there is no obligation for older people to have their driving ability checked.

But there is often pressure from family, says Hilbig. Some people should leave their car at 75, Hilbig says, while others don't drive badly at all. She says there are supermarkets that deliver groceries to your home. How about you just give it a try? Hilbig: Hiding the key with dementia - I've experienced that too.