The relations between the mothers and sisters-in law

I'm from the Philippines and it is just the same about here. a lot of Mother in Law here love to meddle in the lives of their sons and their families. The best arrangement is for a married couple to live away from BOTH parents. This way, the couple learns and makes the needed adjustment without people meddling everytime in their affairs.

I was wondering it happens mostly in Indian families only. But I am amazed to learn that it happens in China too. Yes! It happens in India quite often that mothers and sister-in-laws (or their daughter-in-laws) fight with each other if they stay in a single house.

It is mainly due to jealousy and misunderstanding. One get misunderstanding for every work the other does. I feel pity sometimes, but feel it is the way GOD created our countries!