In Belgium as it is quite common to have parents teaching how to drive rather than an instructor, they made a study on young drivers and it appeared those who learned in this way drive better than people who learned with the usual "auto-école". Which is normal in a way since with the "auto-école" you learn to drive in 20 or 40 hours "only" due to the cost (and learn the rest by yourself alone ). When you learn with your parents you have 12 months (maximum) to learn to drive, so you can do much more than these 20-40 hours...