Using cryptocurrency as a payment methods have a lot of benefits and here I am giving you few points
1 Fees :- Fees are negotiable in cryptocurrency but if you are looking in banking system they charged you a lot unnecessary fees. In the name of account maintenance, Debit card, credit card, ATM, withdrawal, deposits etc. they charged you lot. In cryptocurrency payment you need to pay a little fess and you are free to do anything.
2 Privacy :- Through cryptocurrency you don't need to worry about your privacy. You just need to save your wallet password, passphrase and you can control your all wealth. You don't need to put your ID, Passport etc to open an account.
3 Transparency :- Cryptocurrency is totally transparent and you can find each transaction details in the blockchain. So it's easy to check your each transaction details.
4 Global Payment : Here is no limit and you can use cryptocurrency globally without giving any extra charge. In banking system they charged you a lot when you are doing cross border payments. Example western union transfers
5 Adoption : Now you can shop online through cryptocurrency on Amazon, eBay and other online shopping and day by day cryptocurrency adoption increasing highly.
6 Mobility :- You can pay with your mobile.
So it's a lot of benefits using crypto. Here you can find more details about it..
https://news.bitcoin.com/eight-reasons-to-use-cryptocurrency-payments-in-2019/https://www.mobisun.com/blog/10-benefits-of-paying-with-cryptocurrencies/