When people challenge your business or product, don’t rush to assume that their questions are criticizing or judging you. A lot of time, questions are inconvenient because you aren’t prepared to answer it.
“How are you going to deal with the competition?” doesn’t mean “Your product can’t compete.”
“Your target market seems small” doesn’t mean you are doomed to fail.
Both questions cut to the heart of how your business can succeed in the marketplace. If you don’t have an answer or presume that your product is so good it can’t lose, then you need to spend some time thinking through how you are going to compete and win in the marketplace — and maybe take a much more detailed look at what your market really is.