It's good to share the parenting load between partners.
Ann has to finish a project at work before the end of the day and her son is waiting for pickup after school.
Ann wants to pick up her son on time.
Ann asks her husband to pick up her son.
Ann leaves the office to pick up her son before finishing her project.
Ann works on her project undisturbed and finishes it on time.
Ann gets blamed by her manager for missing the deadline.