"Most taxi drivers whose cars smell bad actually live in their cars," explains 36-year-old driver, Shao Wei. He returned to Beijing last year to drive a ride-hailing car. "I think the drivers whose cars smell bad are heroes who bravely face life," he says, "and I hope passengers will give them some understanding." If drivers get too much negative feedback about their car's smell, DiDi may temporarily suspend them, until they're trained to keep their cars clean. That leaves many DiDi drivers not unemployed, but underemployed — struggling to make ends meet and spending a lot of time waiting for fares.