Oldest children are the firstborn in a family, often taking on responsibilities and leadership roles among their siblings. They may experience different parenting styles, as parents often have higher expectations for them. This can lead to traits such as being organized, responsible, and achievement-oriented. Research suggests that oldest children may excel academically and in their careers due to their early experiences. They often develop strong problem-solving skills and may be more assertive. However, they can also feel pressure to succeed, which may lead to stress or perfectionism in some cases.