Why is it crucial to regularly check car seats for expiration dates?

Regularly checking car seats for expiration dates is essential because materials can degrade over time, which can significantly impact the safety of the car seat. Car seats are made from various materials, including plastics and foam, which can weaken, become brittle, or lose their effectiveness in protecting a child in the event of a crash.

Over time, exposure to heat, sunlight, and general wear and tear can lead to the deterioration of these materials, compromising the structural integrity of the car seat. An expired car seat might not perform as intended during an accident, increasing the risk of injury or fatality for the child using it. Therefore, understanding and adhering to expiration dates ensures that the car seat remains safe and functional for use.

The other options address various aspects of car seat maintenance and use but do not directly relate to the critical safety concerns connected with material degradation.