Uber are not a taxi service. They are a facilitator. They put people who want a car in contact with people who are signed to uber as partners. They accept no responsibility for the drivers, and if you read the terms and conditions you will be shocked as to what you are actually agreeing to. Please take the trouble to do this. You are getting into a car with a stranger who has had no security check, may have no insurance, and may not even be the person in the photo.