Wow!
For the purposes of this Act, “sex”, in relation to a person, means the classification of that person as either male or female based on the organisation of the person’s body for a specific reproductive role, as indicated by the person’s sex chromosomes, naturally occurring sex hormones, and internal and external genitalia present at birth.
The definition of gender reassignment in the Act is:
proposing to undergo, undergoing or having undergone a process to reassign your sex
It immediately falls at the first hurdle by making the Act self-contradictory with this amendment, by making it impossible to have the protected charateristic of gender reassignment.
It also says that doctors can't prescribe puberty blockers, but then gives this exception "it would have been clinically inappropriate to not prescribe, administer or supply the medicinal product to the child." In other words "doctors should prescribe drugs according to the medical needs of their patients" - the current law.
It will never be law.