The Reserve Bank has said the motive for the Federal Government’s $10,000 cash limit bill is to fight the black economy, by stamping out tax evasion, money laundering and other crimes. A Senate inquiry into the proposed law has received thousands of submissions, with many concerned it gives the banks and authorities too much control and could mean ordinary workers being inadvertently  prosecuted.

http://abc.net.au/news/2020-01-13/proposed-cash-ban-is-not-about-controlling-your-money-says-rba/11858104