Dakota - Why is She Growing Up While I Remain Ageless?

You know what's hard? You know what your parents never warn you about? That someday, a child star you grew up with thinking 'Oh they're such a cute kid' is going to grow up - and be, like, a woman, while you were thinking you yourself had never gotten any older.

Case in point, Dakota Fanning:

Stunning!

I met Dakota Fanning while doing a shoot on the set of "Dreamer" - when she was, as they say, knee high to a grasshopper or something. She was charming and articulate, and obviously a gifted actress. How come she is growing up and I remain ageless?