It is declared to be the intent of the Legislature by this act to improve the conditions of seasonal farm workers by establishing standards for their wages, hours, conditions of work, housing, sanitation, food facilities, fire protection and safety; by requiring permits for the operation and occupancy of seasonal farm labor camps; by making unlawful the practices by which such workers may be isolated from the community and from services to which they are by law entitled; and by limiting child labor among such workers.