Choosing altcoin would be risky for the sex workers, it will be a big loss when they bag some of Sexcoin while there will be a bear market.
I completely agree. Also the number of people who even know altcoins let alone have any in their pocket for payment is a lot less than the number of people who own bitcoin and are willing to spend it.
A popular trader Ray Dalio also has been spreading the word about countries ditching thier own currency because all countries today are printing more and more. Countries that oil exporters also ditch $ for Yuan like the Saudi. It's interesting they pick another currency when they should be choosing BTC.
These are two different subjects.
1. People in one country ditching their own fiat for something else for their day to day money usage. This is not going to happen, at least in foreseeable future. People may buy bitcoin to have the "alternative" option but they will not ditch their fiat.
2. Countries ditch the US dollar as their reserve currency or international trade currency. This has been happening for some time now with emerging economic superpowers such as China. And US has been speeding it up by increasing the conflict with the rest of the world while sinking its own economy weakening US dollar. Also sanctioning a lot of countries and isolating United States (to some extent) has hastened this.
The choice here is going to be another fiat currency and if bitcoin is used it will be on a very small scale.