Hello Grandma2twins. It is wonderful that you care so much about your daughter and the babies I'm a bit confused about the scenario. Why don't the babies live in one place with their parents or at least with their mother or father...with visitors coming to them instead of the other way around? Are your daughter and the the children's father no longer in a relationship? Do your daughter or the children's father not have a home of their own...either together or separately?

Routine is of course important for child development. Regular sleep cycle and feeding routines etc. However, if the parents are choosing a less than regular routine...that's their right, yes? If your daughter is uncomfortable with the arrangement, she needs to discuss that with the children's father. Or am I missing something here? If things really seem off to the children's mother, she could consult with a lawyer...if the parents are not in a relationship and co-parenting, it seems valuable to develop a custody agreement.

Peace to all