Disclaimer: Naruto is not my property
Being a dad means understanding how dumb you are depends on the age of your child:
0 to 6 yeas old
Dad knows everything
6 to 8 years old
Dad knows almost everything
8 to 12 years old
Dad knows many things
12 to 16 years old
Dad knows one or two things
16 to 20 years old
Maybe Dad does know one or two things
23 to 25 years old
Actually, Dad knows many things
Over 25
Dad knows everything
When his children were newborns to the time they started the Academy, Sasuke knew what to do. He read all the parenting books(because Naruto obviously wasn't going to) and knew what to expect he was prepared for anything and everything.
When his kids got between six and eight he started losing some knowledge. They were growing up into independent people yet they still needed their good ole' daddy. Because they would always need him right?
When they got to the pre-teen stage he knew what was going on. Sorta. The kids were growing rebellious and for the first time he briefly wondered if his kids would stop needing him and letting him know what was going on in their lives. But he quickly shrugged the idea. His kids would always need their father.
When they became teenagers he sort of lost touch. He knew bits and pieces of their lives and when they started becoming legal adults they shared a few things but nothing all informing.
When they became real adults and started to get their own lives, he knew quite a bit. Not everything but enough that he could deal with his life and not calling them every second and a half.
And when they started reaching thirty? Daddy was right back where he started.
Knower of all.
Author's Note: Sorry this took so long! This is actually the last bullet point of the first chapter of 1001 things it means to be a dad by Harry H. Harrison Jr called Dad Rules. It had no specific age which is the chapters covered so many different ages the next chapter is Fathers-To-Be which will focus on the mpreg of this story.