According to Jean Piaget, a Swiss developmental psychologist known for his epistemological studies with children, every child experiences imaginary audience during the preoperational stage of development. He also stated that children will outgrow this stage by age 7 but as we know now this stage lasts much longer than that. Piaget also said imaginary audience happens because young children believe others see what they see, know what they know, hear what they hear, and feel what they feel.</ref> The extremes to which adolescents experience an imaginary audience, however, varies from child to child. Some children are considered to be more "egocentric" than others and experience more of an extreme imaginary audience or have more of an elaborate personal fable. Therefore, children then subconsciously put more value on the idea that everyone cares about what they are doing at all times. This is very common in adolescents during this level of development as the child is going through Erik Erikson's identity vs. identity confusion.</ref></ref>