In Renaissance England, poor relatives were often hired as nurses for young girls; consequently, the Nurse enjoys an intimate role in the family. She is included in family discussions and even has her own servant, Peter. To Juliet she acts as an advisor and companion.
However, the Nurse is a questionable role model for Juliet as she enjoys many sexual innuendos and certainly gives poor advice to the young Juliet. For instance, at the final scene of Act III, she advises Juliet to marry Paris knowing full well that Juliet has already been married to Romeo. Of course, for Shakespeare the Nurse is a comic foil to Juliet with her ribald jokes and bumbling mannerisms which are mocked by Mercutio.