Are you an eldest child? If so you could be a natural leader...eldest children are often ambitious punctual and hard-working and regularly score higher marks on achievement tests. On the negative side eldest children often feel jealous of their younger siblings who often seem to get better treatment from their parents. First-borns can appear to be 'know-it-alls' who frighten other people with their bossy insensitive attitude. So maybe it not surprising that more than half of US presidents have been first-borns