I would say that workers appreciate flexibility.
We manage a market. The drivers are not our employees, and we don't have a fleet of vehicles. What we want is a balanced market. On the one hand, there are the drivers, and on the other, there are the people who want to get around. The two need to balance each other out, to meet in the middle, so to speak.
In addition, there's something very important to keep in mind: The app works well, and drivers need to continue working and accepting trips.