What a nice mom. I too used my first boughten kit this past fall. It came with 1/2 inch extra fabric, the other pieces had even smaller amounts of extra. I was not pleased. If I had cut even one piece wrong, I would have run out of fabric. And it was not a cheap kit either, I bought it at a LQS on a Shop Hop. (this local shop was almost 3 hours from my home)
I am glad your experience was better than mine.
Kat