What age is the limited to use a carseat?

Car seat usage guidelines can vary by jurisdiction, but generally, children should use a car seat until they reach the age of 8 or until they outgrow the weight and height limits set by the car seat manufacturer. Many experts recommend that children remain in a booster seat until they are at least 4 feet 9 inches tall, which is often around ages 8 to 12. Always check local laws and guidelines for specific requirements.