Australia is a complete nanny state. (loose quoting on laws, but close enough) Anyone caught carrying a blade will be either fined or jailed, unless they can prove otherwise thats it for genuine use, ie chef, gardener, carpenter.
We can't even import anything that allows one handed opening with folding knioves, ie, spyderco, kershaw, benchmade. So if I carry anything its a multitool, which I can prove for work use. Anmd trust me it's not on show. I don't want the hassle from the cops.
Mine is hidden at all times. But Multitools barely draw a glance, every tradesman has one.