According to Friedrich Schiller, including art and aesthetics as a part of children's education allows them to become less selfish and competitive, becoming better citizens as adults.

Friedrich Schiller

A German poet, philosopher, physician, and playwright known for his works on aesthetics and human freedom.

Aesthetics

The branch of philosophy concerned with beauty, especially as it appears in works of art, and with the judgments we make about the artistic value of such works.

Selfish

Concerned excessively or exclusively with oneself, seeking or concentrating on one's own advantage, pleasure, or well-being without regard for others.