Lucy Crehan, who reviewed what is taught in Northern Ireland's schools, says she supports the education minister's reform agenda.
The education minister says it is important to keep a "close eye" on the new law in Australia, but his party had made "no clear policy decision".
The changes to GCSEs, AS and A-level will not be fully introduced until September 2029.
The Education Minister Paul Givan says the provision must now be put in place for all mainstream schools.
New guidelines have been issued by the Department of Education in the wake of law changes on uniforms.
BBC News NI having been looking at they key aspects of the new guidelines.
The minister adds that the RE syllabus will change to include other main religions and philosophical traditions.
Parents are being encouraged to wait to give their child a smartphone until they are 14.
Givan was seeking approval to spend extra money by issuing a ministerial direction.
