The society of medieval Europe had specific expectations for marriageable girls. From an early age girls were taught how to be wives and mothers, for example by being entrusted with the care of their younger siblings. The girls learned everything they would need in the future by observation. According to the teachings of preachers and writers at the time, girls, irrespective of their social status, were not meant to remain idle, as there were fears that with too much free time on their hands, they might spend it contemplating their looks, practising gestures that were to attract the attention of men or spending time alone in the streets and squares, thus exposing themselves to a variety of dangers. A wife was expected to bear a lot of children, preferably boys, because the mortality rate among young children was high at the time. Wifely duties also included raising children, at least until they were taken over by, for example, a tutor hired by the father, managing the household and ensuring every possible comfort for the husband. As Gilbert of Tournai noted, it was the mother who was expected to bring up the children in faith and to teach them good manners. The duties of the wife obviously depended on her social standing — different duties were expected from the wives of noblemen than from women lower down on the social ladder, who often had to help their husbands, in addition to doing everyday chores.