Grades I-IV, State Primary.
Grades V-XII, Private School.
That was OUR choice.
Private, from Grade I, if choice of School had it.
Mix with all types, that's both 'good & bad'.
Private Schools have 'more' of everything. As a friend of mine put it 'X (school name here) is a boy's heaven'.
I attended a single-sex Private School Grades I-XII, so our personal choice was single-sex, so children went to respective single-sex Private School's from Grade V.
Both have stated their appreciation of their good education since graduating, & both children now professionals' in their chosen careers!
So a few hundred thousand $$$$ wasn't wasted after all!