Mark Scott:

In early November, Uber shut its small office in Frankfurt’s centuries-old city center after just 18 months of operation, mothballing the online platform that had let people in the city hail rides through a smartphone app. The pullback was spurred in part by drivers like Hasan Kurt, the owner of a local licensed taxi business, who had refused to work with the American service.
 
 With more than 20 years of experience as a taxi operator, Mr. Kurt said he disliked how Uber barreled into Frankfurt in early 2014, using primarily unlicensed drivers who had not passed the same exams and health checks required of licensed drivers. That low-cost service, UberPop, which is similar to UberX in the United States, faced legal challenges and was eventually outlawe