Transferring payments across the world is functional, and yes, the traditional financial system also does this, but it doesn't mean crypto has no functionality.
Edit: Previous statement I was responding to has changed. I still don't agree that crypto has no utility though. I agree with almost everything I was responding to except that part. Yes, real estate has more utility, for sure. To me it doesn't matter that crypto has some overlap with traditional finance. This is an iteration on technology, which has its own pros/cons, but some folks are trying to come up with something better. Time will tell if that succeeds or not. IMO, it's too early to tell. You can also see that I wasn't the only person who responded to the parent comment that Bitcoin may be a competitor to capital flowing to gold as a potential inflation hedge.