Why did CASA choose to model its new regulations after JAR/EASA - a densely populated region with a relatively tiny general aviation industry compared to its very large airline industry, and arguably a system that is unnecessarily extremely expensive & burdensome without achieving any safer outcomes - instead of the USA's FARs, NZ regulations or even Canada's regulations? USA, NZ & Canada have an active industry at all levels and, except for NZ's size, are characterised by large areas of low population density that rely on non-large airline aviation services.