So far maybe only Bitcoin (BTC) and Ethereum can afford to buy some items. The main reason is the legality that is still not maximally accepted by all countries. Maybe that's all I know for now, because I've also never bought goods or services using Bitcoin or cryptocurrency. But I use it for investment and crypto trading. Please be patient, maybe a few years to come good news for crypto receipts as a legitimate transaction tool will be legalized. We also wait for that.