I don’t believe a driver’s license is required on private
property, but it is true this kid was not qualified to be
behind the wheel even off public roads, and it does seem
to have cost a life.
I don’t believe so either, from a legal perspective, but it does go to his liability and that of the shop for employing him in a job where he had to drive. Also, the shop’s liability insurance may exclude him from coverage while driving if he doesn’t have a license.