Payment cards that allow you to 'spend crypto' don't make cryptocurrencies money any more than a card that allowed you to spend gold or shares or cabbages (if y

Payment cards that allow you to 'spend crypto' don't make cryptocurrencies money any more than a card that allowed you to spend gold or shares or cabbages (if you happened to own a warehouse full of those) would make those things money. BTC isn't 'real money' in the conventional sense as long as people aren't transacting in it directly, and I can't see a path towards people ever doing that - who wants the buying power of their savings and income to swing wildly from day to day? As far as I know that only happens in countries with serious economic problems.