So let's say a couple with three children gets divorced. They have a very bitter divorce and do not communicate at all. A few years after the divorce,Dad has a fallout with his mother and does not speak to her at all anymore.Kids still want to be around their grandmother. Fall out has nothing to do with the kids,but Dad forbids the kids to be around grandmother on his time. Grandmother has no other family and is raising a grandson b/c parents are in jail.The kids invite her and the baby to spend the holidays with them at their mother's house and invite them over for special events.Mom and grandmother have sometimes had a rocky relationship but are civil now and Mom deals with it because she knows it's important for the kids to see their grandmother.
A few years go by,Mom is dating someone for first time since the divorce.Kids invite grandmother and baby over for a cookout to celebrate 17 year old graduating from high school. After dinner,Mom tells kids that they should not be inviting their grandmother over anymore because they need to think about how her new bf feels about having her exMIL around.
Is Mom wrong to tell her kids that?
Edit: Kids are 23, 18 and 16,but are still living at home because they are in school. Does it change things if the kids are older?