It doesn't show they are a scam. It shows they are useless to most people because fiat does what most people need, just better. Crypto has actual use cases, ju

It doesn't show they are a scam. It shows they are useless to most people because fiat does what most people need, just better. Crypto has actual use cases, just those use cases usually revolve around not being able to trust your counter-party, access to easy laundering systems or access at all when access to fiat is denied. This leaves you with the very healthy of set of potential users being those oppressed by nation states, criminals and adult industries and maybe some variations on these that I can't think of right now. So not a scam, just mostly useless and when it's not useless probably attracts unwanted attention vs fiat physical cash.