Little countries with poor infrastructure and poorer people are going to be what drives crypto adoption. These countries will opt for adopting BTC before they adopt CBDC's because their people won't use the CBDCs because the trust is just not there, let alone the ability of the bankrupt central banks in those countries to push out a cbdc.

A lot of these countries that are potential BTC adopters are current or former victims of the Chinese Belt and Road intiatives, as well. The CCP impoverished and basically enslaved many African countries and South American countries to infinite debt through the BRI. BTC adoption could give those countries a way out of the crushing weight of debt-bondage slavery.

Source: Council on Foreign Relations