“For reasons related to their weak socio-economic positions, women rely on the law and its enforcement. Many countries have sought, through constitutional and other legal instruments including labour codes, to prohibit discrimination on the basis of sex or to proclaim equality between women and men as a fundamental human right. However, certain classes of workers, such as domestic workers, agricultural workers and those engaged in small enterprises or family undertakings, are often excluded from the scope of application, and women predominate in these categories.”