At first what led to many adopting bitcoin in Venezuela was not inflation, was that in Venezuela there was a currency control implemented by the socialist government, the first use was as a currency to access dollars or euros.
with time came the economic fall and the Venezuelan exodus, the bitcoin happened to be a medium for the sending of remittances, the catastrophe destruction of the economy caused the currency (Bolivar) to collapse, at this moment bitcoin is a store of value.
RE: How Bitcoin became safe haven in South America