Lack of focus is not the reason why most startup fails because I'm very sure most startups are backed by entrepreneurs who are hell bent on succeeding.
There are other factors that affect the growth of a startup. Factors such as lack of capital, economic recession in the country and lack of business acumen on the part of the entrepreneur.
There are other factors that affect the growth of a startup. Factors such as lack of capital, economic recession in the country and lack of business acumen on the part of the entrepreneur.