It is difficult to say that the project will be very popular. Now very few people use cryptocurrency. Therefore, the number of users / customers will not be large.
I think that you are mistaken. Because so many people now earn in the crypto currency. And these people are not very profitable to withdraw money to fiat money. A big loss of money.
I agree, now it is necessary to give large commission for translating the Crypto currency into fiat money. I do not like it.