Final answer:
It is recommended to use a car seat for your preschooler until they reach a minimum height of 145 cm.
Step-by-step explanation:
The height recommendation of 145 cm for using a car seat is based on safety standards and considerations for the proper restraint of a child in a vehicle. This recommendation is in line with guidelines from child safety experts and regulatory authorities. The height criterion ensures that the child can be securely fastened in the seatbelt, providing optimal protection in the event of a collision. It takes into account the child's developmental stage, considering when they are likely to reach a height where using a regular seatbelt without a booster seat is safe.
In the explanation of this recommendation, it's important to note that height is a more accurate measure of a child's readiness for using a regular seatbelt than age or weight alone. The physical development of children can vary widely, and using height as a guideline helps to ensure that the seatbelt fits properly across the child's chest and lap. This, in turn, reduces the risk of injury in the event of sudden stops or accidents. Additionally, adhering to the 145 cm height recommendation aligns with best practices for child safety in vehicles and contributes to minimizing potential risks associated with improper restraint.