I agree with others that there is room for compromise. Perhaps every other weekend or just Saturday, not Sunday. If Grandmom has a FT job, like most of us, she’s mentally and physically exhausted by the weekend. Working seven days - two as a babysitter - seems unhealthy for Grandmom and for the baby who is being cared for by someone running on fumes. Finally, perhaps those other family members who have an opinion should help instead of judging others.