Share Photo: (Photo : Chayene Rafaela / Unsplash) Children need to develop three types of self control: impulse, emotional, and movement control. The ability to control these aspects of a person is one of the earliest demands society places on children. Why is Self-control Important? In a study of sibling-pairs, it was determined that the sibling with poorer self-control had poorer outcomes despite being raised in the same family, NCBI revealed. Development of self-control in early childhood has a lasting impact on one's life, well into adulthood. Research shows that better self-control in children resulted in slower physical and brain aging, and better management of finances, social demands, and health.