All children are different, however I think younger children in a family grow up a little faster as they have older siblings to learn from and compete with
The first, second third, fourth, fifth, sixth, seventh eighth, ninth, thenth, eleventh, will most definitely ask that same question until kingdom come.
for a start older children are older and know more maturity in life but you can still still get younger children who are just as mature or more mature than the older child it depends on the child and their behaviour
