I would point out that you too have prejudices, jake, a prejudice against selection and also that, statistically, those that come from well read backgrounds tend to have kids that are more intellectually switched on. And, to be clear, I am not saying that coming from a poor uneducated background will lead to the reverse, it does become more of a role of the school to help identify an, unfortunately in some cases, mentor and nourish these kids.
And its a bit of nerve, your insinuation, as you have no idea of my thinking on education - which for your information is about a pluralistic educational system, one that can interchange between schools as well. There is a role for private schools, grammar schools, well founded (and funded) state schools as there also needs to be exceptional talent schools, for artists, musicians, etc etc - I am also a great advocate of mixing reallybright kids with helping kids that struggle. I am attaching a link to what is considered one of the finest schools in the United States - and it is remarkable.
I did think about sending my youngest there (an IQ high up the charts) but, thankfully, she does not show any intellectual arrogance and is naturally open to helping her classmates who struggle. But the TH Rogers takes it to an amazing level and has achieved astounding results with their students who struggle with life at large...as well as the placement of their Gifted Students into top universities.
http://ms.houstonisd.org/THRogers/
We could do with more of this thinking, actual schools being established, and pluralistic approach to education in this country.