I suppose with many they are sort of taught that one of the "cures" for depression is socialising with others and having a network of support. I remember phoning a crisis line and being told to go out and join a class or just do something with others; right that's just what I needed so when you are there and talking about being depressed they might offer it as part of something that would help; only they don't get that what works for some or even many doesn't work for everyone