He’s been involved in just one crash in his life and has gotten just one speeding ticket, a citation that still gets him riled up years later. When he broke his left hip three years ago, his doctors said to stop driving for six weeks but he didn’t pay them much mind. After all, he says, he drives an automatic and only needs his right leg for that.

In New Zealand, drivers older than 80 must have their health and vision tested every two years to stay on the road. Many countries in Europe and U.S. states have similar requirements.

While stories about elderly drivers making mistakes or causing crashes often make headlines, it’s young drivers who tend to cause the most damage.

“Older drivers, on a per-kilometer-driven basis, are involved in far fewer crashes than younger drivers,” said Andy Knackstedt, a spokesman for the New Zealand Transport Agency, which oversees driver testing.