In the poem diplomat listening to the speech of another diplomatWhy it needs a greater diplomacy to tell the children why they cannot go to summer vacation?

In the poem, it requires greater diplomacy because the diplomat must delicately explain to the children why they cannot go on summer vacation, which may involve complex political or diplomatic reasons that are difficult for children to understand. The diplomat must navigate between the need for honesty and the need to protect the children's innocence and feelings, requiring a nuanced and tactful approach.