I think that would entirely depend on the type of business, how the family interaction plays out, and of course, the type of individual involved. I have known families in business that do very well together. The kids were raised up in the business, and raised with a good work ethic, encouraged but not forced to stay on board. I have also known people to hire family members because no one else will, or because emotional coercion was brought to bear. Those situations tend to not be successful.