<human>:  Why do people use Uber instead of a taxi?
<bot>: Well, Uber is more convenient because it is cheaper and the drivers are more reliable. Uber is also better because it is a safer service. Uber drivers are required to have a background check and are subject to random drug testing. Taxi drivers are not required to have a background check, but they must undergo a fingerprinting process, which is less rigorous than a background check.