Your Bitcoin is your asset, and your asset is your money and you are free to use it wherever you want as long as it is acceptable. Bitcoin is accepted as a payment instrument because bitcoin has value even though price continue to fluctuate. In addition, people can trade bitcoin in various crypto market as profitable investment asset or trading asset and price fluctuation are a momentum that often make profit or lose for investor or trader.

As a payment tool, bitcoin has a pretty good advantage compared to fiat because of low cost, ease of transaction and so on. I can send some money abroad at a very low cost and that cannot be done with fiat. In addition, I can do it anywhere as long as I am connected to the internet without having to go to a bank with a rather complicated system. The disadvantage as a mean of payment may be due to the regulation of each country against bitcoin is different and also the price fluctuates.