Neighbors of Choice
A lot of people have pretty specific ideas about who they want for neighbors. There's nothing wrong with this- most people got those ideals one of two ways: by experiencing it and recognizing that it is what they desire or because they lived in a situation where they were unhappy about their neighbors and so came up with their own ideas about who they want to live next to and near.
For some people, affordable housing doesn't sound like the kind of neighborhood that would be desirable, while for other people who have had great mixed income housing situations in the past, affordable housing is just one part of the whole picture. Ultimately, the truth is this: affordable housing is needed, and it needs to be safe for children and families. What better way than as part of a mixed-income community? Certainly this is a better living opportunity than to have affordable housing lumped in solely with low income areas.