Debate: Should Children Rule The World?

Sometimes it seems to me that children are more sensible than adults; fairer; more clear-thinking. I was musing on this the other day, and it occurred to me that maybe children should govern, make laws, sit as judges etc. What do you think? Would it lead to world peace and harmony? Or would it be Lord Of The Flies on a grand scale? And, if the latter, would it really be very different to what we have now?