Parents kids and disrespectful older adults in the family

No I would not, because my children are good kids and I don't want them to be influenced in bad ways by my relatives or had me thrown under the bus in any way.

No. Would not.

Nope, but I would let them know in advance and I would tell my kids to stay away from them.

If they had a tendency to make derogatory comments around the child or things like that, absolutely not. otherwise i don't see any reason to stop them from seeing them. Civility is very easy to do as long as people can be mature adults.

No. F em

Depends on the reason also the age of the child if they can control themselves from saying things in front of your child

Probably not -- at least not beyond the minimum dictated by family holidays, etc.

no