I would like to start this post by saying that every entrepreneur, in fact every person, is a salesperson. Everyday, you sell and influence others. You negotiate with your kids, colleagues and clients, etc. What is selling? Sales have a negative connotation attached to it. Typically when people think of sales, the thought of a call center agent calling comes to mind or people who convince you to do things you don't really want to do.
Selling is about serving and adding value, not about taking money. With your business/ idea, you will need sales. Before thinking about how you are going to make money, think about how you can service and add value to your potential clients/ customers.