77-year-old causes an accident, a driving test?

Hello Together about a month ago a 77 year old Ima drove me into the car. She wants to turn left, we drive side by side, I turn right next to her. As far as no problem. until she then pulled out to the right and pushed my driver’s mirror away (which was repaired only a week before…) She had not noticed in the accident neither horne nor the impact itself (pronounced before the police) accident also police taken to the happiness. now to the woman: 77 years old, 59 years “accident-free”. Can hardly run 5m without a roller, overhears quite a lot, which you also noticed during the interrogation. After the damage was already almost clarified with the insurance the good then reported to the and claims completely confuse things… I should not have been next to her, was too fast, and I drove her to the car… bla bla. It fits now but without problems 2 sprinters on the road next to each other, and the lanes are also clear. .. Who leaves a left turn lane to the right to turn left, has apparently also a problem with the spatial perception. Now the question to you: to whom can I generally turn when I have thought about the suitability of the woman?