the basic idea, namely to use bitcoin and other currencies as a payment method, is currently at least followed by them. honestly, almost nobody.
but as long as everyone is of the opinion that the BTC will explode and be worth millions, nobody spends his satoshi.
and as long as that doesn't happen, there won't be any real value. so it's a vicious circle that will still be exciting to watch.
yes you're right there are rarely who use bitcoin and other crypto coins for payment tools. although many say crypto is the best payment tool, but still maybe only less than 1% of crypto users use crypto to pay for something.