A business plan is a tool that will help you get to your entrepreneurial destination within the timeframe you set or even at a faster pace. It provides you with a map and directions on how to get there.  Not everyone may be able to read a map, as much as not many may find a business plan useful.  Maybe not in all circumstances, but in major crossroads of your entrepreneurial journey, it is advantageous to have something that you can refer to that can help you stay focused on your goals.