Bitcoin is really a useful thing.. With transactions, users might include fees in order to process the transactions faster. ... Digital Currency exchanges help merchant process transactions by converting bitcoins into fiat currency with very low fees within Bitcoin payments.
And also bitcoin has a potential to become the world's future coin because of it's components. Bitcoin can become useful but too risky because there are too many things that you can gain profit but also losses. But because the price dump, too many users getting out of mood because they loss too profit.