Are you an only child or do you have a sibling? Haven’t you heard (parent or not) at some point of time that an only child is a spoiled one? That they are too stubborn and do not share. They do not socialize especially when things don’t go as per their way. Compromises are a big No! There are chances that they might grow up being a lone wolf. When these traits were studied it got a name. Only Child Syndrome.