Presently, it is not easy to cash out from crypto to fiat. It is due to the demand and supply. Fiat has more demand compared to cryptocurrencies is because fiat can be used to transact very easily.
Not many merchants accept crytocurrencies at the moment. Therefore, in the market there is an immediate need to create the right marketplace where crypto traders can liquidate their cryptocurrencies to fiat as quickly as possible and to incur as little fees as possible.
We know that transferwise match overseas funds transfer to reduce remittance costs. Why can't it also provide such services for cryptocurrences?