well a job is a job but women should not and are generally not given jobs where they could be exposed to harassment. a women cleaner has a job that is extremely vulnerable. passersby can make comments, throw things at her and mistreat her. if it is in an all women's environment - still fine - but I dont agree about this case where she is in general public.
Secondly seeing other's posts I think although it may be common in many countries, here it is an extremely rare sight when a women is made to work as a labourer. perhaps its to do with the local culture.