Broken Homes

Today in class we had a lot of discussion about single parent families.  I, personally, have never lived in a single parent home, but I did relate to some of the "popular beliefs" about single parent homes.  I found it interesting that two parent households and single parent households share a lot of the same characteristics.  The one characteristics that stood out to me was child parentification.  My sister, who is three years older then I, has always acted motherly towards me.  She has cooked me countless meals, driven me to where I need to be, and has always been protective and watchful of me.  Don't get me wrong, my parents were great and very involved in my life, but for some reason my sister always took on this role when my mom was not home.  Both of my parents have always worked full-time which I think may contribute to the reason why my sister acts as a parent.  I know its good if kids have responsibility and a work ethic, but kids should be kids.  

PS. When are our genograms due?