Early childhood is very formative as a time-period and even at this age young humans can have a strong sense of propriety. There are some character traits that are exceedingly positive and simply need nurturing to blossom. Our system positively filters for obedience, what we really need is more creative minds.
Absolutely agree that the emphasis on obedience is anachronistic. We need a lot more creative minds; the education system that was originally designed for churning out soldiers and factory workers needs to be realigned for the new economy.