The UK central gov is a notable exception, (if you exclude the corruption with track and trace) why might that be?
The real reason: It provides a mechanism for political kickbacks, vendor lock-in, and shifting blame.
Successive Australian governments since the early 90s have expanded public service outsourcing dramatically.
Here's a comprehensive discussion from the early 00s: https://www.aph.gov.au/About_Parliament/Parliamentary_Depart...
The basic argument is that competition reduces costs and improves quality, therefore we should introduce competition into the provision of services to government.
The UK central gov is a notable exception, (if you exclude the corruption with track and trace) why might that be?