We always say that bitcoin is an alternative currency, yet we don't use it as an alternative, maybe for some they do but most of us? hell no. We are afraid of the volatility, that's the truth.
this is the important point. bitcoin can be used as an alternative payment. But, it is not effective enough for some people. For one thing, because of its high volume, the price tends to change, making it less appropriate to use as a tool for determining value. Bitcoin is more effectively used as an investment tool and commodity trading, its volatility is used to get profit. This all depends on the point of view of each, can not be forced, as needed.