You can have many friends, but only one family. The forever friends have been a part of your family. Friends are people grow together with you, while family is alway looking at you even you leave it.
Friends can be different, but the family will always be invariable. Forever friends in a life just be a part of the family. The family is when you move away, they will care about you silently, while the friends are someone you grow up with in the rain and wind.
Friends always change, while family is forever. The forever friends in your life have already been a part of your family. Families are the one who care you when you turn and leave, while friends are the one you grow toghter in the wind and rain.