How older Americans are grappling with hanging up their car keys

The first time Vonciel Gray got behind the wheel of a car, Dwight Eisenhower was president. But despite a clean record with no accidents over the decades that followed, the 85-year-old knew three years ago her driving days were over.

"I drove to church one morning, I was a nervous wreck," Gray said. "I think I ran a red light, and once I got home, I said, 'No more,'"

Gray is one of millions of older Americans grappling with a sudden loss of independence after hanging up their keys. Her son, Kurt Gray, has spent his entire career cultivating safe drivers, so the decision hit close to him.