WHY (already)

I guess I really never thought the "why" (not exaggerating at least 30 times a day) would start already at 2 1/2 years old.  The past few months it has been why, why, why, why over and over all day long.  The good news is great she wants to learn, great she wants to verbalize and communicate.  The bad news wow it makes mommy tired ;)
Just 1 example of many in the why world I am living in:
Laney: "Where Madelyn"?
Momma: "Madelyn is at school Honey".
Laney: "Why Momma"?
Momma: "When you get bigger you go to school everyday".
Laney: "Why Momma"?
Momma: "So you can learn tons of things".
Laney: "Why learn Momma"?
Momma: "So you can grow up very smart, love your work and make money".
Laney: "Yeah make money go out to eat Yeah"!
Momma: is now bent over laughing :) I swear the girl loves to go out to eat and thinks that is why we work to make money to go out to eat - omg!!
Oh p.s. Madelyn is her cousin who just turned 7 .