If the seatbelt secures the car seat tightly, should you secure a seat with a latch plate?

Securing a car seat using a seatbelt that is tightly fitted is generally considered sufficient for ensuring the safety of the car seat. If the seatbelt is snug and properly installed, adding an additional layer of security with a latch plate is unnecessary and can even complicate the installation process. The purpose of the latch system is to offer an alternative means of securing a car seat that can simplify the installation, especially if a vehicle does not have seatbelts that are easy to use effectively.

Additionally, using both the seatbelt and the latch system simultaneously could create confusion or potential disconnection between the two systems, possibly compromising the safety of the installation. Therefore, if the seatbelt is adequate, relying on it alone aligns with best practices in child passenger safety.