My child's motor skill has developed very well

Expert says that between 2 to 3 years old, children can run, jump with both feet together, hold pen or crayons and scribble on paper. This is the physical and motor development of the kids. However, my daughter has learn to holding a pensil and "write" on paper since 14 months. It was such an interesting discovery by her granny. Her granny give her a pensil  as she is trying to grab the pen from her cousin. Out of her surprise, she saw her holding the pensil nicely with its tip on the bottom and start scribble on a paper. Granny was so surprised that how come she learn to do it all by herself in the first time and was showing it to everyone at home :)
Here is the picture I took at her playing with the pensil at the coffee house. So focus...