Nothing  US dollar do to us. We only need to eat our own work effort only needed. Please do not go with the fiat usage all the time. Transaction will be same for everywhere in this world for using cryptos but Fiat cash will fuck you for sure.
Ignore Fiat and make money with the  cryptos and save fees you bear.   Yes, precisely, this is what I think the next step will be as well. They will find an alternative. A nice alternative that is more convenient and safe for the masses, and they'll spin it in such a way that everyone will eat it up without question. Just like everything else that they've been forcefed.

This is why the concept of bitcoin has so much value, but the application has to be realized before the fiat is defined as useless. It's already well on its way with China and Russia purging their reserves of USD and the IFM talking down the dollar as if they've got some other grand scheme in mind. This could be it!!!