Obviously guys leave because of their wives, unless they have issues with their parents or need to move for reasons like job/studies etc.
Dont you think if the house is spacious, there is privacy, and most of all there are bathrooms, just imagine (seems like you guys have a shortage of bathrooms in the west), then shouldnt the dils be willing to compromise a bit and stay?
WHY CANT PARENTS ENJOY HAViNG THEIR KIDS AROUND WHEN THEY ARE IN GOOD SHAPE? Do they have to be sick, old, and dying to have the luxury of having their kids around?