Another aspect often overlooked is how great help grandparents can be. Even though nowadays that is often seen as a big no-no, in some cultures, and if they are willing to help, they can make young parents' life much easier.
My parents live in the same town as we do. I can't imagine what it would be like not having them nearby.
Yeah, there are some drawbacks. They are far more permissive than we are, and my 7-year-old takes full advantage of that. But they give support and love and interaction that we sometimes don't have time for.