Americans like the idea of starting a family business. According to the US Small Business Administration, 90% of the 21 million small businesses in the US are family owned—and 62% of employed Americans work for family owned companies. The success rate of family owned small businesses, however, is amazingly low: 7 out of 10 of family owned businesses fail before the second generation gets a chance to take over.
http://www.chiefoutsiders.com/blog/things-to-know-before-putting-your-kids-on-the-payroll