I just spent four hours on bookkeeping for the family business. When we started, over 23 years ago, it took me 6-8 hours a week to manage the books. Now it takes 15-20 hours. But, truth is, managing the books on my own, from a home office, is the best job I've ever had. I love setting my own hours and answering to no one but myself.
Ideally we would like to some day sell the business. However, I can't see us ever being able to completely retire as long as we're able-bodied. I'm hoping, when the time comes, I can find, or create, a similar part-time situation. For sure, it will not be watching babies or toddlers!