While it might get a little easier with time, the job is far from over after the kids have left home or achieved adulthood.
Though you do not have the day-to-day parenting challenges, navigating an adult relationship can be difficult.
Sometimes they lack the motivation to move on with their lives. Sometimes you will be their sounding board. Sometimes they ask for your help though your advice may sound like criticism to them.
If your child has married, you have even more relationships to navigate.
Coaching will help you to have a fresh perspective enabling you to not only maintain but expand your existing relationship with your adult child.