I guess starting off with crypto only will save you a lot of time, hassle and obviously cost.
Even after a year I can tell you CC payments are still a pain in the a*s. With crypto payments you will have less hassles and also lower fees.
I can only recommend you to create a proper business plan and make︀ sure you have enough liquidity for your project, a lot of people truely underestimate the︁ running cost of this kind of a business. The "license costs" are the least to︂ worry about.