Are taxi drivers who pick up passengers on the roadside all gangsters now? (see description)

Why is there a taxi driver gang? Taxi drivers are just a group. Because of the particularity of the whole work, they have their own fixed groups. Birds of a feather flock together. The more honest drivers are, the less contact they have with each other. A few drivers earn some money by driving, and the money they earn will be gambling and entertainment. Because this business is no different from a job paid by the day, people who don't mix well in society are low-level hooligans even if they participate in triad activities for a period of time.