Fun Sunday - concession price one day pass

My family went on a tour of Sydney on a Fun Sunday ticket. It is a one day travel pass on trains and buses and can be bought for a concession price of A$2.50. We took the ferry from Darling Harbour to Circular Quay and another ferry to Manly and back and a train back to our apartment. The normal fare for these trips would have been A$15. The concession price is really attractive. Many families went on an outing on this Sunday to use the concession tickets. I do not know what role the government played to encourage this type of useful social activity - but I suspect that some leadership from the government is required to make this happen. A lesson for Singapore?