The stability that feudalism gave was one of its main benefits. Although serfs supported the infrastructure by providing necessary goods and services, feudalism had the drawback of making it impossible for Europe to be united in the face of conflict, suspicion, and rivalry. In the Middle Ages in Europe, the manorial system was the most practical method for arranging the estates of the aristocracy and clergy, and it allowed for feudalism. Manorialism had drawbacks, such as preventing people from rising in social status.