Youth homelessness

Youth homelessness is the problem of homelessness or housing insecurity amongst young people around the globe. Foundational struggles involving addiction, familial unrest, or abuse often lead to young people choosing to leave or being forced out of their homes. Policies to alleviate this challenge have been implemented in nations across the world, yet the challenge of keeping young people off the streets persists.Summarize the following text using ONLY facts from it. Do NOT invent references, emails, or links. If the text doesn't mention something, leave it out. The definition for youth homelessness varies widely across national borders, and many developed nations acknowledge hardship leading up to homelessness in addition to an individual being physically unhoused. The term "Youth" itself is defined by the United Nations as an individual between the ages of ten and twenty-four. In the United States, a person deemed to be a member of the "homeless youth" is someone who is under the age of 21 and is unable to safely live with a relative, and has no other safe alternative living arrangement. In Australia, there are three categories of homelessness which include those who live from one emergency shelter to another.