As for me, I am an only child and according to Adler only children tend to feel more at ease with adults, to be more mature and to be successful in intellectual activities. I think that's a pretty accurate description for me. I think birth order theory can be a useful tool for people like teachers or school counselors to give insight into why some children behave in certain ways. Alfred Adler's name is usually not very well known outside the realms of psychology, but he actually contributed much more than we think. His work later influenced other psychologists such as Abraham Maslow and Carl Rogers. He essentially made a name for himself by advancing the idea that people have the ability to change their state of well-being, change their lives, and even take control of their mental health. He also has a few schools named after him, one is the Adler Graduate School and another the Adler School of Professional.