I Almost 16

Yesterday morning as I was driving Grace to school she said,

"Mama someday when I'm big I'm going to sit there, (points to my driver's seat) and you can sit there (points to the passenger seat)"
"Yes, someday when you get big you can drive," I said "But you have to be 16 years old first and grow big and tall so you can reach the pedals and see out the windows"
"So I can watch the road." she said.
"That's right" I said.
"I almost 16" she said.
"You are almost 4" I said.
"Yes, but I getting closer" she said.
"Yes you are" I said.