The growth stage lasts roughly from birth to age 14 and is a period during which person develops a self-concept by identifying with and interacting with other people such as family, friends, and teachers. Toward the beginning of this period, role playing is important, and children experiment with different ways of acting: this helps them to form impressions of how other people react to different behaviors and contributes to their developing a unique self-concept or identity. Toward the end of this stage, the adolescent (who by this time has developed preliminary ideas about what his or her interests and abilities are) begins to think realistically about alternative occupations.
In marketing Growth stage is the PLC stage in which a product’s sales start climbing quickly. When the new product satisfies the market, it will enter a growth stage. The early adopters will continue to buy, and later buyers will start following their lead, especially if they hear favorable word of mouth. Attracted by the opportunities for profit, new competitors will enter the market. They will introduce new product features, and the market will expand.