Which of the following is NOT considered an essential protection for child passenger safety?

Airbags, while a critical safety feature in vehicles, are not specifically designed for child passenger safety in the same way that child safety seats, booster seats, and standard seatbelts are. Airbags are intended to protect adult passengers in the event of a collision, and when it comes to children, they may actually pose a risk if the child is not positioned correctly in relation to the airbag or if the child is too small.

Child safety seats are designed to secure infants and small children in a way that minimizes movement and maximizes their protection in a crash. Booster seats help raise children to a proper height so that standard seatbelts can effectively protect them. Standard seatbelts provide crucial restraint for passengers of all sizes. In this context, airbags do not serve the same fundamental role in child passenger safety as the other options.