Small children are very fond of putting their fingers into electrical sockets. Electric shocks can cause burns and even be fatal.
All children try to learn by imitating, pulling, pushing, climbing and touching. This is the normal way of learning. A child while doing these things is liable to hurt himself. It is the duty of parents to encourage him in his process of learning and protect him against the obvious hazards. It is imperative for parents not only to make the household, but also the neighborhood, safe for the child.