Mrs. Nichol is trying to explain to her son (Jack) that everyone has bad hair days and it's not the end of the world. Jack refuses to leave the house because he knows the humiliation he will endure when his peers at school see his hair. This is an example of

The correct answer is Imaginary audience.

Adolescence is a stage of development and transition towards adult life, which is characterized by an accelerated growth rate. During its development, neurological, cognitive and socioemotional changes occur, in addition to physical and sexual maturation. All of these experiences include the transition to social and economic independence, the development of identity, an increase in self-centeredness, the acquisition of the skills necessary to establish relationships in groups and the practice of roles.

Egocentrism during adolescence manifests itself through several cognitive and emotional phenomena such as the personal fable, the imaginary audience and the feeling of invulnerability:

The personal fable is a story that teenagers tell themselves, based on the conviction that their personal experience is special and unique.

Imaginary audience: When, unrealistically, teenagers consider that others pay as much attention to their appearance and conduct as themselves.

The feeling of invulnerability is a cognitive distortion that could underlie the risky behaviors that some adolescents engage in, thinking that the most likely consequences of such behaviors cannot happen to them because they are special.

Through a group of equals, teenagers learn to put into perspective and to relativize what is happening to them, as well as the emotional intensity it produces.