I think the price of bitcoin will often move quickly up and down because it is very difficult to see exchange rates in stable conditions for the short or long term so I often rely on bitcoin as my favorite investment place in terms of looking for income.although sometimes there are bad problems about crypto it doesn't make me give up easily to achieve success.
That because most of bitcoin transaction is only for trading purpose. Most of us only buy and sell bitcoin in the exchange site to gain profit. It will be different if we more often to use it in goods market. I hope there are more merchants who accept bitcoin as medium of exchange.
But the reason why these merchants are not using bitcoin is because of its instability or its volatility. If bitcoin will be stable, surely a lot of people will be using it. No one knows what might be the movement of bitcoin is so they are unsure to accept it because they might lose their profit when it dumps. Another thing is the transaction fee.