When you are poor, as long as you have enough food to ease your hunger, are you going complain about hygiene? I think it is not what you care much about if you can get it cheaply. Just less than 10 minute by car or motorbike from main roads where increasing luxurious cars run, thousands of people are trying to live cheaply but unhealthily.
The above photo was taken in September 2008 at Tuol Chey slum overlooking Steng Meanchey dumping site during my visits for a small survey on children situation there. If I dun remember wrongly, the seller did not even try to keep those flies away. But I sometimes think that it still better than some food that even flies do not dare to come close due to the use of chemical substance.