The purposes of this chapter are:
(a) To promote and preserve the health and general welfare of the people of the state and to cultivate the development of good citizenship by provision for adequate programs of community recreation.
(b) To authorize public corporations or districts having powers to provide recreation, cities, counties, cities and counties, and school districts to organize, promote, and conduct programs of community recreation as will contribute to the attainment of general educational and recreational objectives for children and adults of the state.