Euripides liked writing his plays about human nature. Many of his plays are about women and their emotions.
In Hippolytus, he writes about love, fear, and anger.
In Medea, he writes about envy and hate.
Hecuba involves revenge.
Alcestis is about a women who gives her life for her husband.
Iphigenia at Aulis is about a girl who gives her life for her father and her country. Iphigenia Among the Taurians is about a girl who risks everything for her brother.
In Heraclidae, a girl gives her life to save her brothers and sisters.
In the play Heraclidae, children are on the stage from beginning to end but they do not speak one word. This play is about the children though. They have escaped from their cruel father who is trying to get them back. Their grandmother is desperately attempting to keep her grandchildren. Having the children on stage helps makes the audience pay more attention to the play becauses they feel for the children.
In many of the plays that Euripides wrote involving children, he is trying to get the audience to feel pity, anger or the pains of the children.
Some well known Euripidean tragedies that involve children include The Suppliants, Medea, Heracles Furens, Hecuba, Alcestis, and The Troades.