The data is so cheap that it enables fantastic new applications like yours. Don't stop building. There are many people (not on HN) cheering for you.
Cryptography obviously has use cases. Real customers have been paying for it since long before the advent of digital computers. That has little to do with the scammers, grifters, and ideologues pushing cryptocurrency schemes.
There's not much novel about blockchains. It's a clever bit of mathematics, but so far no significant commercial value. You should read the NIST overview.
That would cost a lot of money and have no content. The problem isn't friction. The friction would be easy to overcome if you didn't have those two fatal problems.
There are gateways who are more complicated and more for developers, but of course i don't want to offer these.