The usage by Cubans is completely dwarfed by the one by Nigerians. The population size can probably explain it partly, but I don't think it's sufficient.
But most people depend on platforms to use BTC, so it's the same problem as with PayPal.
Also when I say PayPal, think "all PayPal-like services", including all the competitors.
In the cases where users were banned, PayPal did not prevent them from migrating their funds to others forms, so it's not really freezing.
Let's take China instead of Cuba because there are more data. In January 2021, Nigeria made 32% of BTC exchanges, whereas China only 7%. That shows you there is really some effect independent from the population size and from the nature of the political regime.
But most people depend on platforms to use BTC, so it's the same problem as with PayPal.
Also when I say PayPal, think "all PayPal-like services", including all the competitors.
In the cases where users were banned, PayPal did not prevent them from migrating their funds to others forms, so it's not really freezing.
Let's take China instead of Cuba because there are more data. In January 2021, Nigeria made 32% of BTC exchanges, whereas China only 7%. That shows you there is really some effect independent from the population size and from the nature of the political regime.