It's all dependent. My parents did and were very civil; our home was loving, and I had no idea they had issues at all. You would have to ask them how they felt, but as a kid, I always thought everything was fine and noticed no issues in how they changed post-divorce (after I finished college). They are still kind and communicate with one another. They keep in touch,
My daughter and her two kids (boys, 7 and 9) recently moved in with us until she can get back on her feet. Her and the kid's dad (not married) had an acrimonious break up, and because she was working for his family business, she is now without a job. But she should be starting one in the next week or so. The house she was living in with him is owned by the business, so she had to move. The dad isn't paying much for child support and doesn't plan on paying more until "the courts decide the amount."