I loved my slightly hippy, rather lax, 1970s coeducational primary school. It smelled of slightly off warm milk, blackboard chalk and musky boys.
But because single sex schooling was the norm in my area, my high school was a girls school that smelled of musk sticks, Impulse and Johnsons Baby Oil.
I don’t remember missing the boys. The handsome ones in primary school never liked me anyway, and I was still slightly traumatised from kissing a boy called Mathew whose lips were as claggy as Perkins Paste.
But I do remember, as my high school years went on, that boys became increasingly mysterious to me. And I gradually forgot how to behave around them.
Australia is one of the few countries in the world that has more than 10 per cent of its students in single sex schools. Most countries do not divide students on the basis of their gender.
The most recent research from the United States concludes separating boys and girls is wrong. It says their brains are not different enough to require different teaching and when you take out socio-economic influences, single sex schools do not actually perform better.
And some researchers say single sex schools are actually damaging students, because they increase gender stereotyping and legitimise institutionalised sexism. They argue we don't separate children on the basis of race, so we shouldn't separate according to gender. There is some evidence that in single sex schools, boys become more stereotypically male - rougher and tougher - and girls become more girly and (I cringe as I write this) 'bitchy', because the boys are not there to moderate their behaviour.