One of the things that discourage most 20 something year olds from establishing businesses of their own is the perception that they will have to do everything themselves. With this comes fear that most of your time will be dedicated to the business meaning your social life could end and everything in your life will revolve around the business.
At most times most entrepreneurs choose to work for long hours. It might be because they enjoy their work so much that they want to put in long hours or perhaps they have set up their businesses in such a way that their physical presence is necessary for income generation. Does being self employed necessarily entail working for longer workers?