MillyR - "But I do believe that families, with the support of schools, are ultimately responsible for their child's education. I think many problems arise from the belief that the responsibility ultimately lies within state education."
You state a philosophical position, which is the one to which I also personally adhere; I view school and state education as one resource among many that I have at my disposal when educating my children.
However, that philosophical position is at odds with the state ideology position in many countries, France included, where the state is the great purveyor of the service of knowledge transmission between the generations and the sole responsible for the determination of a certain body of knowledge and skills that all citizens must acquire (or given the opportunity to acquire). I think that the proliferation of shadow education, in particular the sort identified in the report as the fast growing segment which takes children beyond levels and/or skills attainable within mainstream schooling, is a reflection of ever more parents adhering to a philosophy of responsibility for education similar to your own, or mine. The age of individualism is indeed upon us 