A blog owner is going to fail if he is just interested about the money that you can make me instead of trying to actually give content to the people who are going to come and consume it.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
The reason why a lot of blogs fail is because the people who owns those blogs are not consistent, they want to make money very fast or they are not good in their niche so they stop blogging because they are not getting enough traffic.One of the reasons why bloggers fail is that they're not producing engaging, outstanding quality content. With so much content being produced, great content is the minimum bet for getting in the game.
As a result, you can provide your audience with information that they would't be able to access on any other blog.
Concerning why blog fails, I have to say, there are numerous reasons why blogs fail, and you have mentioned a few in your post. I think blogs fail when they stop producing quality content, bloggers always have to come up with engaging contents