I may be looking through rose tinted glasses here, but I would go on to say a majority of the people I know I would define as nice, or in the very least not unkind. I have had some really nice and bubbly people in my life before, and I would say that being around them helped more with depression then SA, for me. At times I've had a very strong sense of self and view on life, and in those times the people around me didn't effect it one way or another, but whenever it was weaker the people around me structured it a little more, and when those people were nice, with a better outlook on life, I felt I fell in line with them a bit. All the SA stuff is all on me, but the people around me can definitely effect mood and life outlook.