My state school educated son sat some independent school exams recently. Lots of the boys there were from private schools and out of curiosity I looked up some of the schools they came from to see what secondary schools they eventually ended up in. I was surprised to find that some boys went from (what I thing were) top prep schools such as Hill House, St Thomas' Battersea to state (academically non-selective) Catholic secondary schools: the Oratory and Cardinal Vaughan. The latter are both brilliant schools but I thought that parents who sent their kids to such top notch prep schools would have gone private all the way. I would love to know what made their parents choose state education at these schools rather than opting for private education in secondary. Can anyone enlighten me??