Besides, your friends may be 100% behind you in your new venture, but, in case you are hoping to involve others who have actual money to invest, you may need to be able to make a convincing case. Wouldn't it be nice to have anticipated possible questions and be ready with plausible answers? If you are risking your own money, that is perhaps even a stronger reason to do some indispensable planning.
Some people think that they do not need a business plan for a small business. But let me make it clear that the size of the business doesn't matter. Whether small or big, you need a plan. If you need a plan as an individual and for your family, then why not have a plan for your small business? Like for individuals and families, you need to plan for your online small business. A business plan shows you what you would like to achieve and how to achieve it. Although not all plans are written down, a good business plan should be written down. If you have it in your head, it's high time you spent some time to write it down for better results.