In my opinion,i think child with a sibling is more likely to know that is not good for us to be too self-centered.its essential for us to have a collective conscious and try to cooperate with others when we are put in a group.and i believe non-only child will learn to share at a very early age.as we can see,many only child are spoiled because in their family,their parents and grandparents put all their heart in their childrens growth.to the contrary,non-only child dont get so much concentrati
