Livelylass, that's exactly the case in the city near where I live. And in many others too. Certain streets and certain districts (which I, like you, could name) have for whatever reason become rookeries of this way of life. I suspect the Council deliberately houses certain types in these places 'to keep them all together' and to spare the 'better quality council residents' (not my words). It makes it easier for social workers and District nurses, Police and other folk involved in their surveillance to access them. They can 'do' several in the same street in one morning! And the single unemployed young mums who live near eachother supply mutual support and company. But in my experience, they fight a lot and physically attack eachother, they seem quite volatile. Probably, living their lives on the edge stresses them out terribly. I've visited some of them in their flats, and even wallpapered/painted a baby's room for a young lass. But the squalor has to be seen to be believed. I don't know how they can be helped out of that way of life.