Here again, market research has established the safe harbor method as a cost efficient method for both larger and smaller companies to enhance highly compensated employee benefits while still providing a substantial benefit for the non-highly compensated rank & file employees.
If you want to practise your driving with an accompanying driver, the accompanying driver must be over the age of 21 and, must hold a full licence in the relevant vehicle category for at least three years. As a learner driver you must display 'L' plates in a conspicuous position on the front and rear of your vehicle.
However before you can drive it you must be of legal age (usually 16+), have a license and usually insurance. There are some states that do not require insurance. So even if you are 10 you can technically buy the car. You can insure it but you would obviously need to list a licensed driver on the insurance.