It is a fact that a Homeless Population exists and lives on our streets. This population does not only exists but it keeps growing everyday. It is likely for an average person to encounter a homeless person at least once a week because most of the time is more than that. we find them outside supermarkets, at parks, outside restaurants, and  the most common place now at the entrances and exits of freeways. (I'm moving this here since this back up your first sentences and actually gives numbers and a source for your introduction) The 2013 Annual Homeless Assessment Report (AHAR) To The Congress states that about 600,000 people in U.S. are homeless, about 138,000 of them are children and women, many of them includes Veterans. The good news are that the U.S. Dept. of Housing and Urban Development, along with other Departments are planning strategic actions to end Homelessness.

-you are going to want to create a section that follows up your last sentence and discusses the new strategic action plans out theree

The many resources there are for them to benefit from are not always enough because their number enlarges as the days go by. These people deserve a chance to overcome their present reality.
-here you  say that the plans aren't enough which means not only do you need to explain the plans but then also create a section that shows why they aren't enough

People like John from "stories from the streets" deserve a helping hand that makes them feel appreciated and valuable as human beings they are.
-remember your audience doesn't know who John is.  Also you don't even write about him you just mention him in a single sentence.  If you are going to mention him that make his story have a purpose and develop it

I do not think a person that is now homeless chose to become a homeless. some obstacles are greater than others and unfortunately sometimes the resources are smaller or lesser than the motive. Everyone should be able to have and afford a place to stay in and nobody should starve in a country where there is abundance. Homelessness should be extinct.