Failure is not final if you learn lesson and keep going. Many successful business or inventions once failed but become successful when people don't give up. Failure comes with lots of valuable experiences that would be used in future to run startups. New business owners might make mistakes that will have an adverse effect on the business; this is why the failure rate is relatively high.

I am just recalling how my poultry business faced financial problems in the first year. I never knew that I could sell the fowl droppings to farmers, which would be used as manure.  I also didn't know that some parts of the animal could be used for different purposes. I was busy disposing of them, and it affected my profit.  After about one year, I gained more knowledge and began to make a profit.