True or False: If a child can sit upright with knees bent over the edge of the seat, they do not need a booster seat.

The statement is false. It is vital to understand that the primary concern regarding child passenger safety is ensuring that children are correctly secured in a vehicle to maximize their protection in the event of an accident.

Even if a child can sit upright with their knees bent over the edge of the seat, it does not necessarily mean that they are safe or correctly positioned to use the regular seatbelt. Booster seats are designed to elevate a child so that the seatbelt fits properly across their body—specifically, the lap belt should cross the upper thighs, and the shoulder belt should cross the chest and shoulder. If a child's proportions do not allow for this correct fit, they should continue to use a booster seat until they meet the requirements for transitioning to a regular seatbelt without additional support.

Ultimately, the child's age, weight, height, and the vehicle's seatbelt system determine whether a booster seat is necessary, not just their ability to sit upright or bend their knees. So, the assertion that a child does not need a booster seat based solely on their sitting position is not correct.