➡ From Child Welfare Information Gateway NJ:
US: Good Parents, Good Kids: Anger–What is it, really? (Opinion)
Record-Bee – April 12, 2016
Anger frequently becomes a default emotion children use when a different feeling would have accomplished a lot more. But that part of their brain–the prefrontal cortex, which should make it possible for them to stop short of rage–is not yet fully developed, and won’t be until several years into adulthood. It becomes immensely important, then, to attempt to unearth the real source of the child’s feelings, and sadness is usually where I begin.
http://www.record-bee.com/lifestyle/20160412/good-parents-good-kids-anger-x2014-what-is-it-really