The General Assembly finds the following policies desirable in the administration and application of the school feeding program: Private organizations and corporations should be encouraged to participate in the program; The identity of children who participate in the free feeding program should remain anonymous and positive procedures should be adopted to accomplish this; and Applications for participants in the program should be brief and simple, based on a statement of present income and family size or of participation in a social services or welfare program. There may not be discrimination in this program for elementary, junior high, and high school students.