There are various stages in a child's life when there are new dangers to be considered. When they start to crawl, hot drinks and sharp knives need to be kept out of reach. When they can stand up, that reach is dramatically extended. Then comes the time when they can both drag a kitchen chair around the room and climb up on it.
In the run-up to Christmas (and a December birthday), when she can play games on Mummy's laptop, it's important to remember that she can read!