Still, they are within my reach. Wife nahi cook karey ghi tou kya wife ki maan aah ke cook karey ghi? Of course, the wife will have to cook and take care of them when I am not there along with their grand children.
Even if at BIL, that is still a third person, a paraya home if you will… parents generally don’t consider their son’s home as paraya but their daughters, yes because she is married into ANOTHER family.