I agree with you 100%. My W seems to think that the separation/divorce will not be that "big of deal" for our girls. I disagree, but at the same time I am not interested in just staying together because of the kids. It will be tough for them, but how we co-parent will make a huge difference in how well they do.
I work from home so I am here to get them off to school and when they come home, so that is a huge plus. The apartment that my W will be moving into is only 3 miles away so that is good as well. She loves the girls every bit as much as I do and they love her. I would never think of keeping them from her, but I want a defined schedule so that we are all on the same page.