I use bitcoin as a medium of exchange for goods and services all the time. And any 1 sat = 1 sat
Discussion
So do I. But it cannot be used as a medium of exchange for the entire economic population, because it cannot process enough transactions. For it to be money, the entire population needs to be able to use it as a medium of exchange, but that isn't possible.
No money is used by the entire economic population currently. Bitcoin is available to more of the entire population than any other money
We might be confusing terms here. Economic population means 'population of people who economically engage with each other'. So for USD, that would be at least US adults and businesses. For the Euro that would be Eruozone adults and businesses.
Bitcoin cannot even handle enough transactional volume to onboard the Eurozone economic population onto the lightning network. So therefore Bitcoin cannot become money in that population.
If we want Bitcoin to become global money, it needs to be able to process enough transactions to onboard the global adult/business population into the lightning network. That is not possible. Therefore people will result to lightning banks (like WalletOfSatoshi) which can do all the same evil stuff as fiat banks.
If you want to free the world from the banks, you want #6 & #7. If you just want a financial instrument to hedge you're portfolio, then Bitcoin's current status as digital gold is sufficient.