In my country you can pay bills using either BTC, ETH ad BCH. Your earnings can be used as a payment equivalent to your billing balance plus rebate. This is such a useful application and I can do freely anything about it. You can also but load, or pay merchants like credit cards all using your crypto balance.
what country are you talking about? Venezuela?
as for the topic, i never use crypto as a payment option. probably i will study some marketplaces in the future and will try to buy smth, if the price is worthful.