Below is a collection of articles that outline the importance of the Arts in the lives of children.
https://files.eric.ed.gov/fulltext/ED529766.pdf
https://www.arts.gov/sites/default/files/Research-Art-Works-Maryland.pdf
https://www.learningliftoff.com/10-reasons-arts-in-education-important-kids/
https://artsforlifeaward.org/why-the-arts/