Crypto will never crash  the system and replace money, at least not in north america.Everything is enforced by laws, like a law that tax needs to be paid in cash, on all items, no matter what the person pays with.Sometimes it feels like people think if we all go crypto, money is somehow going to be free, and life is going to be so much easier, I don't think that's true.Imagine if you could only buy bread with crypto, and some billionaire buys a large amount of crypto the night before, the next morning your bread will cost twice as much.In other words its a rare resource, basing prices on crypto doesn't make sense.It can represent money all day long, and have value based on the dollar, but I don't think it can be money, unless governments just make digital cash for us, that doesn't jump too much.