Do your in laws favor certain grandkids?

Do you guys have in-laws that favor the other child and grandchild? I call them the golden family. She had the first girl grand baby, and she thought daycares wouldn’t give her daughter one on one care, so she was supposed to quit but never did. My mil watches her daughter and forgets about our boys more than anything. An now she is applying for full-time and expects my mil to watch her! I could just scream!! Thanks for the vent!!

Yep. I told them exactly how it was too and now they don’t do it