Well, because there is faaaaaaaaaaaaar more prejudice when divorcing in India!
If you were in the West 100 years ago, it was the same.
Now in the US and Europe a woman is not looked down upon if she is divorced, as she can happily remarry.
She can also claim costudy of her children.
In India, if she divorced, she would rarely remarry, she would be looked down upon and the children would go to the father.
I hope this answers your question!

