SRE - 'special' religious 'education' - aka 'scripture' [classes] - narrow, doctrinal religious instruction - in NSW Public Schools has been problematic for over two decades, if not four or more. That is why ethics classes - Special Education in Ethics - SEE - and the organisation that provides them, Primary Ethics - were proposed and developed in the 2000s as an alternative to SRE (when Catholic, Archbishop-fearing Labor NSW ministers of education refused to address the issue of increasing numbers of students opting out of SRE).
SEE-ethics classes function to continue to embed the SRE 'program' in NSW schools. They continue to fail to meet the demand for more than a relatively small minority of all the students who opt out of SRE, even in the minority of schools that provide them, despite the SEE-ethics program having been available since 2011
As with SRE instructors, the capacity and quality of individual voluntary SEE facilitators varies. Many are parents who cease in the role when their child or last child leaves the school
SRE participation, especially for Christian SRE, is falling year upon year
many high schools have rock bottom SRE participation rates of < 2%
primary school SRE participation rates can be as low as 10% or less, depending on what options are available at a particular school
while many Sydney metropolitan schools offer more than one SRE option or stream,* most regional schools only offer Christian SRE, including almost all schools in the bigger cities such as Wollongong, Newcastle, Lake Macquarie & the Central Coast
*(some Sydney schools offer 7 to 9 options, including SEE and 'not-doing-either-SRE-or-SEE,' often creating logistical issues for them)
SRE is allowed at considerable cost to NSW public education (including a significant monetary lost-production cost)