I don't think its "nepali culture" in whole to blame to; I think poverty is the main culprit here. I think it’s sad that young men have to go to places like Arab just to feed their families. Plus, I don’t think you can really blame sasu, buhari in this case. Of course, it would be wonderful if mother in laws and daughter-in-laws got along, but it’s hardly the case in most of the household. So they both can’t solely be blamed for the seperation; the sasu might in “little” bit blame in this case for them moving out because no matter where you are (city or village) you have to give your adult children (esp. the married ones) some privacy, and a right to live their own life. They don’t highlight what the buhari does to make her sasu furious in this case, so we don’t know her role in the disagreement.