You could be right......
But, I have a theory about small business startups. If they all followed the "book", business plan, etc, etc, I doubt there would be many startups. Most businesses don't make any sense in the beginning, the plan is no more than a dream of the owner.
My start sure didn't make "business" sense. I was in a well paid engineering position with job security. I just couldn't stand sitting at a desk all day long. So, one day I decided to give my notice. I had one customer who I'd done some side jobs for in my not well equipped basement shop. No knowledge of business, I didn't even know what "Net30" meant or even heard the term. There was also a recession at the time, but I was young and didn't know what a recession was. What I had was determination to make it work.
If I had developed a properly done business plan I don't think anybody on earth would have thought starting a business was a good idea for me.
After a couple years running, I took a Small Business Administration course in starting a business. Wow!! I had done everything wrong. I didn't have the lawyer they recommended, or the accountant, didn't even have the correct permit/zoning to run a business from my home, not to mention the business plan. If I had followed the advice given, the lawyer and accountant would have bled me dry before I ever got off the ground.
I don't think my startup was all that different from most businesses. We learned as we went or we drowned.