No one tells you that when you have kids that you will worry about them more when they no longer live with you.
No one tells you that when your kids move out of the town you are in, and the others move in different directions, that you will give up your social life to visit them.
No one tells you that when your kids have kids and they move away, you will be more heartbroken had your child just moved away.
No one tells you they grown up too fast and that when they start their lives you are both proud and so sad!