Not until it's near as stable as the dollar it won't.
...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