DS1 (7) has had some difficulties making friends. He is friendly enough and described as social able by his teacher, but he doesn't seem to form attachments. ie he always has someone to play with, but it's a different child everyday. Recently he has talked about one boy more than the others and I was wondering about inviting him to play (Ds1 has never suggested it) My only reservation (and yes I'm ashamed on myself) is that his parents are incredibly rough, shouting, swearing, badly dressed, even dirty. Ds1 says the boy is well-behaved. I'm not sure what I'm worried about exactly and it's good that he has a friend but....?