I believe it is because they need to have one format so they don't get confused!
Your personal identity is the way that you see yourself and is closely related to your self image. It is very importantto you because it will affect the way you feel about yourself and how you behave in challenging situations.
Law......all......wall......I think your supposed to do it that way ..!!???
Answer:
Ray Bradbury uses personification in "There Will Come Soft Rains" to transform an automated house into an impelling character in its own right, giving it a sense of personality. At the same time he often uses personification to transform a fire against the house into an intimidating enemy, which is in fact an inanimate force of nature.