Answer:
I think the purpose of this text is to show that the street children still want what everyone else has and takes for granted and if given the chance this one child would rather help others achieve this instead of leaving them behind. It helps the reader see that homeless people still have the basic need to have love, affection,food,shelter and access to medical care and should not be overlooked or ignored.
It can allow you the ability to analysis how the author write rather than what the author wrote. Its a big deal since you can tell their feelings/ideas towards the topic they are writing about.