Hello, I'm a big fan of this project and I have some cool ideas for the game.
I think that driver license should be a hard thing to get, like you should go to driving school and pass the test to get it. This way, the traffic of the game should be less chaotic and more fluid. So if you want to move through the city, you should try alternatives transportations like taxis, private transportation apps and collective transports(vans, minivans, buses and kombis). With this, you guys would generate more jobs and more realism.
Also I would really like to see suchs as an classical vehicle as a kombi. It'll be really fun to drive through the city taking passengers to their destination, etc.