Teaching well originally is abundantly preferable. Feinberg's recommendation of vouchers, issued to all parents from property taxes imposed on us all, will stimulate free-market competition in education to achieve superior results than we currently observe. It'll rejuvenate results. The voucher system spent by parents to ensure their children's education would force all schools, government and private, to improve greatly to compete for educational dollars. Children's futures are too precious to leave in bureaucrats' hands.
Parents are most vitally concerned with their own youngsters' welfare.
You may say that all engineering designs must be carried into the next millennium. Specifications and bureaucracies live forever. The United States' standard railroad gauge of 4 ft., 8.5 in. comes from the original specification for an imperial Roman war chariot. That is the way they were built in England, and the U.S. railroads were built by English expatriates. The people who built the tramways used the same jigs and tools used to build wagons with the same spacing.