Anyone who can walk to an exchange house has access to dollars here friend. But it is true that any level of poverty is intolerable. I don't particularly use a lot of dollars in my daily life here. Everything here is paid in pesos, The dollar is usually a savings reserve, at least until today and tomorrow I wouldn't be able to tell you hehehe 😅 

 False. 
I went to buy dollars with residents, poor people, in Argentina. They were denied service. For some time there were limits, they could buy only a limited amount, until they began to discriminate completely, low income citizens became unable to buy dollars.  

 Unless you mean buying at unofficial rate, which is unaffordable for most people.