There are so many countries in the world where people do not know the meaning of democracy word !! Such as North Korean. In my opinion , Democracy helps to make a good decision and the difference between the wrong and the right.When a child encounters some problem and tries to solve it then it is bad, if his parents allow him with democracy then he won't had such issues. !!!
Parents, children and democracy ? 
How about a single parent with two children? I would love to see their democracy
That's why probably all countries have an age of majority.
