Bitcoin will solve this problem.
...or just for PH to support stable coins internally.
As weird as it sounds I honestly think they should pair with one/more exchanges to support low friction onboarding/exchange - who knows, maybe some of them will convert to traders! :)
https://www.coindesk.com/tether-says-its-stablecoin-is-fully...
Tether (USDT) $1.00 USD
A decade is an eternity in the tech world. If bitcoin had a use case, we'd all be using it by now.
We can message each other peer-to-peer in real time with end-to-end encryption, but financial messages still move in batches over a 1970s centralized communication system, in plain text and in "near" real time (hours to days), with all limitations of those times affecting how business gets done in 2019.
Judging by the finance industry standards, public-key authentication has yet to prove itself.
-- because it was impractical for most prospective light-bulb users to generate their own electricity and it took decades to build out a network for distributing and metering electricity.