It is very sad, according to the clip they cannot stand upright, due to some medical condition. I imagine they were not accepted which led to poor education, the video mentions that the women rarely go into the village as they are not socially accepted. "They are occasionally beaten up by the village children and [are not] socially accepted," said Arabella. It is very sad and tragic as you say Phillip. The only way we learn to interact is through communicating and socialising with each other if people are denied this communication they will also be denied the language and socials skills needed to interact and socialise. It is cruel the way these people have been left in this situation without any help.