Domestic work, such as private housekeepers, nannies, or tutors who live in the home, is an extremely important but underregulated sector. Often exempted from wage, hour, overtime, leave, and workers' compensation rules. Subject to discrimination, sexual abuse, violence, and human trafficking. Few countries allow a domestic workers' union, although unions in several countries in Latin America and Africa have lobbied for greater oversight. Why is protecting domestic workers so difficult? Why is it important