Ay which stage of the family life cycle do parents become empty nesters and have time to focus on one another

Empty nesters is that stage for parents when they "launch" their first child, and he / she leaves their house for an independent life, and they end up with an empty house, or an "empty nest"

Explanation:

During the empty nesters stage, positive things happen for both the child and the parent. If the parents have trained their kids well, the kids will be ready to leave home and face the challenges the new world presents them with, living a healthy independent life. For the parents, the empty nest leaves them free of the duties and responsibilities of their children, and they get a chance to focus on their own individual lifestyles.