'cuz why?

Kiku has officially discovered "why?"  She asks it without warning, at any time of day.  It doesn't matter how many times we answer her question, or if there really isn't an answer to her question, she just keeps asking us "why?" because, oh, I don't know.  Because it's just so much...fun?

Kiku: Mama, can we go to the playground today?
Me: Sure, that sounds like a great idea.
Kiku: But WHY?
Me: Because it's a really nice day and the playground sounds like fun.
Kiku: 'Cuz WHY?
Me: I just told you, sweetheart.
Kiku: But 'cuz why, mama?

I have admit that I've been waiting for this day to come with lots of anticipation.  Excitement, even.  Don't ask me why!