The middle child's advantage & disadvantage

Middle children have so many advantage and disadvantage. It depends in the family. For middle children, sometimes things go really tough and hard and cannot be solve easily. So what makes the middle children's lives easier? When the middle children get to some kind of problems, it's hard for them to solve it, but it will be helpful if they share their problems with the oldest children. As though, old children have done many things, so they have many experience that they can help others. By sharing their problems with the oldest, it's made the middle children lives easy and makes them more pacific with others. This could help them to be connecting with others. However, it's not easy to share problems with the oldest children. Some of them like criticize, or give the cold shoulder, or even being selfish to the middle children. And this is what will affect the middle children in many ways. It can change their behavior with others, or make them disconnect form others.