There's no investment without risks. Bitcoin is not exempted. The volatility nature of Bitcoin is a unique feature that aids the growth of the market with time. One major risk I see is the risk of being hacked, seeing that bitcoin is a digital currency although it is highly protected from easy access by hackers. I believe it would only take time before many of them start figuring it out. Except Bitcoin it is constantly improved.
lol Bitcoin actually is one of the riskiest coin to invest if you are not willing to Buy and Hold because while This coin is the slowest moving coin also this is the fastest dropping coin.
so best to be ready riding with bitcoin because this may bring you to the losing hard in crypto investment
The high volatility is a major risk. People who accept BTC as a means of payment are often in the red when prices are falling. Government regulations represent another risk.
in terms of payment , if you will not deal in fiat value then there is no risk in using bitcoin because paying and accepting bitcoin is not affected in any cause of fiat.