Once your teenager drives away, there is nothing you can do to prevent that teen from doing something stupid with their car; you can, however, train the teen to be a safer driver by:
1. Provide practice driving under a wide range of conditions. Don’t just practice driving on sunny afternoons. Go out at night, when it’s raining–in a variety of conditions. Otherwise, the first time your new driver encounters these conditions, it will be when you aren’t with them.
2. Emphasize, again and again the use of a seat belt for everyone riding in and/or driving the car.
3. Restrict passengers; go beyond state law’s restrictions.
4. Substance abuse and driving: Don’t tolerate under any circumstances.
5. Restrict use of in car electronics such as radio/CD player, navigation devices, etc.