I have written a comprehensive topic on this forum a long time before about this. It saddens me to see nothing has changed, and people are still getting fined for riding.
Petition here (sign if you believe in ESK8): https://www.change.org/p/roads-and-maritime-services-legalise-pevs-personal-electric-vehicles-on-nsw-roads
Previous topic: https://www.electric-skateboard.builders/t/legality-of-the-esk8/40671/9