it is usually the narrator! have a good day :)
Answer:
<em>Parents.</em>
Explanation:
Seat belts provide the best protection for passengers in a car. This advertisement emphasizes their importance encouraging drivers (in most cases parents) to always check if their children fastened up seat belts. Kids usually ignore their parents` advice finding it boring, so it should be parents` obligation to insist on buckling up before they start the car in order to increase their safety.
