Many businesses fail because they are focused on the wrong things. In my environment I have noticed that a lot of people start up the same business that a lot of people are already into, this is a huge mistake that they make . Another thing that's capable of making your business fail is as a result of improper planning, before you start any business make sure you do a little survey of people doing it in that environment
There are quite a lot of factors that influence business. It can be successful, but the economic situation in the country can simply destroy it because of idiotic decisions of the leaders. This is what happened to me. I had 2 popular online projects that worked with the whole world, but because of the sanctions, it all went down the drain one "fine" day. I spent so many years and money on all this that it still makes me sad and annoyed. Therefore, it is not only about proper management. Force majeure circumstances can also appear that will block all efforts.