Bitcoin's a better payment tool than credit cards because bitcoin's very safe because until now it's difficult for bitcoin to be falsified and the privacy of its users's guaranteed. All may know, we can consider transactions with bitcoin faster and cheaper. Because, bitcoin's also decentralized. Not a few users who use bitcoin for investment, because they think bitcoin's a high-value asset and many also use bitcoin for daily trading. However, even though there are enough people who believe in bitcoin, this cryptocurrency hasn't obtained legitimacy rights from the government and other countries.