What evidence best supports the conclusion that this story was written for children

This is a very vague question, when you mention "this" story. Therefore, I will write a general answer. Frequently, the children story is about love, doing good deeds, happy endings. Additionally, it is not necessary that there would be children character, as it could be only adults, animals or some objects that gains life. Animations could mostly be considered for children.

Explanation:

the nurse was the one who kept interrupting the balcony scene.

romeo decides to spend the night with juliet before leaving verona due to being exiled for killing

which is a characteristic of dramatic point of view? it allows the audience to get deep inside a character's head. it often uses the pronouns i and me. it more easily allows the audience to make up their own minds about characters.