So the basic concept was that Naya's family had to move to the camp because they needed water which was closer to fetch from, and the pond near their house was dry, So that is why they had to move from there. Also in the Question, ask's that "Whose side are you on" I would say that I would be on Nya's side because now she doesn't need to take two long trips from the house and to the pond. I would not be on Nya's mother side because she makes a lot of excuses. I know that because on page number 33 (means 6th chapter)it states that "they had no house and had to sleep in the makeshift shelters" In my opinion, it does matter where you live unless it has no space. Second Evidence is that it said," They could not bring most of their things they had to make do with whatever they had in hand ". I guess you don't need that too because after three months they to go back in the old house so it is not that important. Also then the last evidence is that " and for much of each day they had to dig for water". For that, I would say that it is ok if will they have to dig water, at least they get water it is not that they don't get water. 

 So as we see Salva has changed a lot through this book and also keeping in mind that he is the main character in the book. I know this because as the author states that he was taking one step at a time as he had no moral support when his uncle died by the rebel. Then he says that Quote that he took one step at a time. But he got a really good result by taking those steps and reached to a place which was unspeakable. He became the leader of the group and gave tasks to the people to do which helped them later on.