10.    “I do not need business credit because my business is already doing well and I am in a very good position financially.”
If that is the case, good for you!  This is the best time to establish business credit! Most people make this classic mistake. They form an entity and still use their personal credit for everything (most may not even be aware of how that happens). Most companies fail for financial reasons. If that is the result of cash flow problems, and you go under and have personally guaranteed everything, guess what, you still lose all your personal assets even with a separate legal entity.