Are teachers parent replacements?

Here's an article by Justin Ferarri reporting on the APPA's concerns over teachers' responsibilities for teaching things 'normally' taught by parents. Are teachers currently seen as the arbiters of values and social welfare ahead of parents? Should this be the case?

http://www.theaustralian.news.com.au/story/0,20867,21452562-13881,00.html

I'm finding this statement interesting: "The national umbrella group of parents and citizens organisations, the Australian Council of State School Organisations, yesterday supported a charter that refocused primary schools on the traditional core tasks of literacy, numeracy and socialisation".