Pata nahi bhai. Well kuch hadd tak ye explainable bhi hai agar saas bahu ek chatt ke neche rehte hai toh.
Like ladkiya ati hai na ladko ke ghar pe, and not the other way round. Toh kuch bhi boli..it definitely is an adjustment on some level for them...kisi ke liye kum, kisi ke liye zyada...but still hai toh sahi.
And may be they worry ki pati ji unbiased nahi hai...and that they will bring in some amount of biasness for sure...and hence the ladai of pati ko apna banane ki and khunass saas ke liye .
And in some cases, bacche actually hote hai jinko pata hota hai ki mummy galat keh rahi hai ya something but still they expect the girl to adjust instead of correcting the parents....toh aur bhi zyada khunass