because of this fluctuation bitcoin until now has not been able to achieve mass adoption and in my opinion is not suitable for use as a means of payment. although some stores that accept bitcoin as a means of payment in fact only convert to bitcoin to US dollars I think this is still a good step. at least it can be used as a promotional medium that there is currently a new type of currency, cryptocurrency.
Yeah bitcoin should become a stable coin if we want a mass adaption, but i think that wouldn't happen, the art of bitcoin and cryptocurrency trading is when the price move dynamically in a short time that's what make it popular. I think bitcoin and other alts is still gonna be a trading thing until a long time because people use it for that.