Paying by cryptocurrency coins is quite convenient. However, the only problem with cryptocurrency payment is that it isn't recognized widely nowadays. Furthermore, it only accepts some of the coins such as BTC, ETH,.. not other coins. Personally, I think crypto payment will need a while to be widely popular!
Moreover, to be applied in our daily lives, every store can accept payments with Bitcoin or other coins, so it is very difficult for us to apply it. Now Cryptocurrency can only be used for online shops and only for certain countries, not all countries accept payments by Crypto.