OP What you said is so true and never talked about much. It completely resonates with what I experienced at my in laws place. PIL will roast DH like anything for their daughter. DH blindly believes that his sister is his responsibility and gives same priority or even higher priority at times than me and my kids. I observed that this is more prevalent in particular part of india. My father and my mother are from two different regions. My mother also realized this after her marriage because she has never seen this at her parents side. I also observed this behavior with PILS and also with my father and paternal relatives side. Also my PILs and my father are from same region.