Let’s start with a pleasant old couple in an established suburb of Adelaide. They own a five-bedroom house with a huge garden. All the kids have grown up.
It is clearly time to move. Not a great distance, just round the corner to a neat unit with a manageable garden.
In a remote way, it is in the national interest for the them to move. In the new unit, they might call less on social services. They will have a less burdensome life. Moreover, their spacious suburban house will become available to a younger family that would otherwise face the prospect of moving to a new outer suburb. The building of that outer suburb will cost oodles of public money in stretched sewerage pipes and electricity lines and the like. Here followeth the usual litany about the urban sprawl.
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