In reality driving a car in a city is not hard, if you're having your driving lessons I'm sure by the time you finish them you'll feel confident enough, well, most people do. But I'll say this - if someone is having a hard time understanding how to drive properly in a city, a decent steering wheel and playing games such as CCD can greatly improve their skills.
CCD is a great game, you can learn pretty much all the basic stuff like stopping at the red lights, crossing intersections, signs and so on. It's also good for someone who has no idea how to drive with manual transmission. Although playing such games is actually more difficult than real life, for example checking the mirrors, viewing to the sides. In reality you can do this within a second, while in a game you have to press lots of different keys (this is not an issue if you have TrackIR or hundreds of monitors).
My advice is if you like driving and cars and gaming, a steering wheel such as G27 will be a good investment for the future.