I think 6 years is ideal age for starting school. Childrens at six years should start preparing for learning in next years . Childrens should start educate to grow up on smart people .if they dont start learning at six years old they never start learning. And dont grow up on smart people. In some countries childrens start learning in school at four and I think it is too early to learn for childrens . Childrens only wants to have fun in this age and education isnt important for them ;D .