Then they rush out and write what they think the bank wants to hear. As a result they may get the money and get the business started but the plan may not be the best plan for the business. You are going to need more than just the business plan to sell your idea to the money boys. Before presenting the plan know it inside out. Yet it's as common today as birds in the trees.
New ideas require education.
Don't forget to include the cost of additional advertising to educate the public about your product and how and when to use it. If you want to start a woodworking business there probably isn't a lot of things I can tell you about wood. That knowledge is the strength that you bring to the business. But you will need some help with the areas you are weak in. For most people that is the part called the financial.