Even though this driver had a license, many drivers in other countries where Uber operates do not. Part of why classic Uber is not in Germany is because you need an extra license to be allowed to drive passengers around for money, this includes deep knowledge of the area you are working in and a bunch of other tests and checks.

I think it makes sense that not just anyone is allowed to do this, even though i see a lot of cab drivers driving pretty recklessly, but in general they at least seem very experienced and the cars are usually very modern and safe.