I came across this interesting video presentation talk by Sir Ken Robinson, world-renowned education and creativity expert and recipient of the RSA's Benjamin Franklin award. In the video he talks about what’s wrong with public education and why paradigm change is required. While the talk and the statistics are primarily USA centric, I think the state of affairs and the arguments he states are quite valid even in India, and perhaps most of the world.
I feel that divergent thinking, while reduces as we grow up and get "educated", can increases as we start working & gather many more experiences. Many organizations (at least in the services sector in India) now are focused on teaching (training) their workforce on divergent thinking. And with the increasing exposure to television, movies, the Internet, our thought goes beyond what we might experience directly.
Of course, there is no questioning that the school system should allow children to learn the way they want & what they want. There is definitely a need to reform the education system. However, as parents I feel we can do our bit of giving freedom to children even while following the set system of school education. That is something that is in our control and easily implementable while we continue to push for reforms in the school system.