Why is "I live in school" a separate option? People in school dorms either live with their friends, by their own, or with a spouse and potentially even children.
Speaking of:
"No, I live with my family."
Could mean "I live in my parent's house" as well as "I take care of my elderly grandma who lives in the house I own" and "I live with my spouse and children"
The real insinuation of the poll is asking whether or not you are financially independent or not, and potentially whether you ever moved out of your parent's home. So it really should have just asked that.
I am pretty sure "I live with my family" was not meant to include the married adults who make up a large segment if not the majority of fakku'ers.