This is a very interesting topic for discussion. I think that small merchants at the initial stage can attract customers to themselves by the fact that, unlike other stores, they can pay in cryptocurrency. As is well known, additional concessions to the client often play a positive role in trading. In addition, the audience of cryptocurrency holders is constantly growing. First, it can be in the form of an experiment, and then as one of the methods of payment. If this experience becomes successful with small sellers, then at first other small sellers will begin to enter payment for cryptocurrencies, so as not to yield to competitors, then medium, and then large ones.
It will also give a benefit to the small businesses that a large number of people will crowd around them for their purchases because they all need a service in which they can pay with crypto and skip the exchanges, so it will give growth to these small businesses.