Owning People

Why do people want to claim ownership, such as ‘my friend,’ or ‘my mom,’ over other people and is it right to do so? In modern society it seems that many people have the want to claim ownership to people. For example we commonly say phrases like: "my Mom," "my Dad," or "My Friend." But what is out justification. Many times we claim ownership to tings we had labored to create or obtain, like "my House," but unless we are someones parents we do create, or buy people. Instead perhaps, people tend to want to claim ownership over people over others because of the bonds they have labored to create. But is right to claim ownership over people. Often times this becomes a touchy subject. In American culture, we often tend to think back to slavery and automatically reject the idea, and yet still phrases like "my friend" are ever present. 
I think that there is a general, silent, agreement that even though we may say "my friend," we do not actually have any true ownership over the individual, but simply a close bond with them. If that is the case, there is no true harm in the statement but rather a way to show connection.