Starting a business, whether online or offline is not exactly easy. There are so many things to think of and so many things to do. You have to have enough resources, a good venue, a market to capture and enough workforce to start with. And as if you need more, you also have to worry about licenses, complicated paper works and other permits.
I also said that a business plan consists of a narrative and several financial worksheets.
No matter how great your idea is, most people expect that you have it written down. When I was new to inventing, I had no idea what that meant. I searched around but didn't find any universal format for documenting my ideas.
I mentioned that the 'writing of a business plan' as one of the pivotal steps involved in setting up a successful business. By now you should understand the need for writing a business plan. Writing a business plan, for a traditional brick and mortar business, will probably take a lot of time. It may take up to 100 hours or even more. For obvious reasons, a new business needs to carry out a lot of research before a business plan can even be developed.