Because SFs are connected to people in terms of real life events. Hence, one can look at them and recognize that they are connected to people. When you are connected to people, connection goes both ways, it is a form of dependence and not necessarily a bad thing. We are all connected to people and external world and we all need to be, that's why I said noone can be independent %100. Most handle their T problems through people rather than on their own. It is a good thing because I think reverse can lead us to obtain less information about those subjects, not seeking help where you superid/super ego T/F problems can cause disasters, I know this from first hand. However, if a person relies on other people without learning anything, they can fail in the absence of people regardless of type.