Some people say that the network signal is not good when you are away from home. If there are currencies that are traded offline, that would be great, and maybe there will be large-scale application scenarios for digital currencies! What do you think?
Although we want this thing to happen so those people who have no internet connection in their place still have time to trade. Unfortunately, no application exists for this, it means that the internet is the lifeblood of all crypto transactions (just for now) and it all needs it to proceed the transactions. Maybe it can be changed in the future. However, I don't think about it this time because that was still impossible to run trading offline. Well, you can make a deal with your friend and do complete the transaction once there is an internet.
Maybe you haven't experienced the effects of natural disasters. When the communication network is down, when we have no money in hand, how important it is to buy daily food. Recent US dollars of all ages are in use. It is impossible to tell the true from the false. The security of paper money is more worrying.