What is the recommended way to secure a child aged 8 years and older?

The recommended way to secure a child aged 8 years and older is with a regular seatbelt. At this age, children typically reach a size where they can safely use an adult seatbelt without the need for a booster seat. The seatbelt must fit properly for it to be effective; this means that the lap belt should lie across the upper thighs and the shoulder belt should cross over the shoulder and chest, away from the neck.

Using a booster seat is appropriate for younger children who have not yet reached the height and weight thresholds that allow them to use a seatbelt safely on its own. Securing a child in the trunk is extremely hazardous and illegal, as it places them at significant risk in the event of a crash. Similarly, having a child ride in the passenger's lap while the vehicle is moving is unsafe, as it does not provide adequate protection in case of sudden stops or collisions.