With regards to questioning, it's just part of the business' journey towards taking its first step at the ladder of success. Without questioning, the business will not grow and will not become more tough against possible problems that may occur when it's already taking its steps on the ladder of success.
There is nothing a matter about questioning in making a business, of course it is also important that your business is in accordance with the wishes and demands of many people, but asking too many questions and never starting a business is wrong dude? too long in the process will not make you get progress, just try!