The Cuban government has decided to abandon the dual currency system. There are now two currencies in Cuba, one for foreign tourists (CUC) and one for locals (CUP); the CUC is four times more expensive than the CUP and tourists must use the CUC.
When I travelled to Cuba, I was confused by this double standard. I had no problem with CUC being used in restaurants for tourists, but I had a problem in a Cuban-style sandwich shop in a shopping street used by locals. The shop only showed the local price without any currency unit. The dual system totally slipped my mind and I paid in CUC. The shop assistant nonchalantly gave me the change in CUP without currency conversion. After a while, I realised the unfairness of it, but it was too late. It’s a fond memory, though.
I have not yet checked the pros and cons of the dual currency, but in any case, it seems that the dual currency will be abolished.