system
The task at hand is simple: provide assistance with expertise in any field
human
Provide additional examples to the following paragraph to demonstrate the scope of the problem.

Relevant data:
"Homelessness is a big issue in many cities."
gpt
Homelessness is a big issue in many cities, with an estimated 150 million people worldwide experiencing homelessness due to a combination of factors, including poverty, lack of affordable housing, and mental health issues.