Americans are wary of self-driving cars. In 2016, the consultancy firm McKinsey said the self-driving vehicle market could be worth more than $1.5 trillion in 2030. But there’s one major barrier — people. According to Axios, 54% of US adults don't trust self-driving tech and would be unlikely to use it on a daily basis. And only 25% of respondents said they would feel comfortable in an autonomous car. • Share your thoughts: #SelfDrivingCars