We need to rethink the First/Third World framework.

From a Bitcoin-standard perspective:

Genesis World: (1st world) :

Full Bitcoin adoption (e.g., El Salvador, moving toward this).

Second World: Soft adoption, pro-Bitcoin gov, but still fiat as main money

Third World: Very limited adoption, no government involved, (but mainly grassroots citizens adoption).

Fourth World: Anti (or ignorant) Bitcoin stance from governments, companies and uninformed citizens with close to no adoption (e.g., Belgium).