Some of us look grown up, but inside we are not. Developmental arrest can occur as a result of childhood wounds/trauma. When we don't have healthy parenting and healthy dependence, it is impossible to mature and develop, separate, individuate, and become strong and autonomous. Emotional immaturity creates chaos because internally the person feels dis-regulated and chaotic. resorting to defense mechanisms like, alcohol, drugs, and overeating, not only don't help, they actual hurt the development process by locking us in psychological prison. To start to grow and mature we have to revisit the past, and heal our wounds.