at what age does a child no longer need a car seat
California is the latest state to tell 6 and 7-year-olds to get back into their car seats. A new measure that kicks in Jan. 1 will mandate car seats for children until they are 8, or 4 feet 9 inches tall.Under current law in the state, kids must be in car seats until they are 6 or 60 pounds.alifornia is the latest state to tell 6 and 7-year-olds to get back into their car seats. A new measure that kicks in Jan. 1 will mandate car seats for children until they are 8, or 4 feet 9 inches tall.