(4) Should parents of children now enrolled in nonpublic schools be forced by economic circumstances to transfer any substantial number of their children to public schools, an enormous added financial, educational and administrative burden would be placed upon the public schools and upon the taxpayers of the State. Without allowance for inflationary increase, the annual operating cost of educating in public schools, the five hundred thousand students now enrolled in Pennsylvania's nonpublic schools would be an additional four hundred million dollars ($400,000,000). Necessarily added capital costs to construct new facilities or acquire existing facilities would be in excess of one billion dollars ($1,000,000,000). Any substantial portion of these operating and capital costs would be an intolerable public burden and present standards of public education would be seriously jeopardized. Therefore, parents who maintain students in nonpublic schools provide a vital service to the Commonwealth. Wherefore, it is declared to be the public policy of the Commonwealth:
That, in order to reimburse parents partially for this service so vitally needed by the Commonwealth, and in order to foster educational opportunity for all children, a program of Parent Reimbursement for Nonpublic Education is hereby established.