A University of Britain has unveiled a new thing, according to this research, the first child of any couple is more sensible and more serious than other children. The first child's intelligence and ability to think is better than his younger siblings. More mental incentives given by parents can also be the reason. Older children have the pressure to care for younger siblings since the beginning, so when the parents are absent, the responsibility of younger siblings is indirectly coming to the elder child. Older children also get more emotional support from parents. Due to being the first child, the attachment of the parent is more to them. The attachment to older children is also more because they have first realized their parents the parenthood. Parents put the hard work on their eldest child.