Best for them

I read a book about keeping kids out of the middle.

It was interesting to learn that one of the most important things is to give the kids closure.
To not give then any sense of false hope.

That means that having both parents sit down for dinner, or have both parents at the original 'home' would only be confusing and giving them a false sense of hope.

What is most important is to give them confidence and security in the new seperate lives that each parent is building.

So, don't fall into the trap of 'but it's for the kids' , 'we should do what's best for them'. What is best for them is to know that it's going to be okay having one kind of life with Mom and another kind of life with Dad. What they need is consistent confidence that this new Divorce life is going to be okay.