This concerns a baby's mouth, such as the activities of suckling to the breast or bottle. Mikey is always bottle-fed, and Mollie and James ensure that he is always fed on time when needed so that oral needs are always met, which also increases the level of trust that Mikey builds with Mollie and James. Mollie and James make sure to feed Mikey whenever necessary, which also contributes to Erikson's theory of basic trust. Therefore, Mikey never develops habits such as thumb sucking, nail biting, and overeating. Ecological systems theory views the person as developing within a complex system of relationships affected by multiple levels of the environment (Berk, 2014). James is involved in Mikey's life more frequently than his biological father and takes on the role of father figure and male role model for Mikey. However, Mikey considers James his ideal father. Mikey has a loving bond with James, who acts like Mikey's father in his life even though he isn't. Mikey wants his mom to make James his dad since James is still there and having fun with him.