Sooner or later it will happen and we will see how in the future they will use cryptocurrencies, so I am definitely sure that we will see this phenomenon and it will be clear that cryptocurrency will be a payment system.
Governments of different countries can easily decide that cryptocurrency is only a means for money laundering and other illegal operations and prohibit it, so do not be too confident in the bright future of cryptocurrency as a means of payment
but at least crypto still has the opportunity to be used as a payment tool because if there are more crypto users and crypto is getting bigger then if it is not controlled it can backfire for the government and inevitably the government will start regulating.
and the easiest way to set up is to make them hold crypto control by legalizing crypto as payment.