I know there will be a time when it will not be necessary to change from fiat to crypto and vise versa. Hell that time may already be here. If the time has come where that exchanging of one to another is no longer necessary then i definitely need an update because that would save a lot of time and money.
I believe so that time will come when fiat will no longer be necessary; thus, we will no longer need to exchange crypto for fiat. This will happen when crypto replaces fiat as the main medium to conduct commerce. But the exact time or season when it will happpen, it's difficult to predict. Should everyone knows, the price will spike since every hodlers will strongly hold; no one will dare sell. Until the situation changes, we will need to exchange crypto for fiat to purchase our daily stuff.