Answer:
They sail solo around the world, climb the highest mountains and race around ovals at breakneck speeds.
They’re kids, some not old enough to get into an R-rated movie on their own.
On Sunday, a 13-year-old became the youngest person to die at the Indianapolis Motor Speedway when he fell off his motorcycle and was run over by a 12-year-old during a race, raising the question: How old is old enough when it comes to extreme sports?
“They’re not just small adults,” said Dr. Lyle Micheli, director of the division of sports medicine at Children’s Hospital of Boston and an adviser to the International Olympic Committee’s medical commission on youth sports. “Kids are different. Kids have to be protected by society.”