In 2014, more than 32,000 people were killed in car crashes in the United States. In 2012, more than 2 million Americans visited the emergency room as a result of car crashes. An estimated 94 percent of the crashes that caused these injuries and fatalities are attributable to human choice or error.

These are sobering statistics. Because human behavior is at the heart of them, they raise an interesting question: Once we can take people out of the equation, could driving your own car become as socially frowned upon as other risky habits, like smoking?

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