"Selective schools"

According to this article, the majority of British people want selective schools, rather like grammar schools in the day.

In principle, there is nothing wrong with selective schools. It probably is beneficial for brighter students to be taught together.

Still, I would want selective schools to exist within the free market and not be financed by state coercion and force. Sadly, the day New Labour would implement my idea is the day pigs will fly and there is a cold day in hell...