2015 English Proficiency Index is out.
These are the countries that speak the best English as a second language.
I don't know about the Dominicans, but we have a large tradition of British-style bilingual schools, most private schools here were built by Anglo-Argentines in the 19th century and are run to this day by their descendants.
For example, I've learned English since I was 3 years old, I went to a bilingual Elementary School, then Middle and High School. All of it was bilingual, you were expected to speak English in the afternoons even among pupils.
At the end of it all you walk out of there with a Cambridge First Certificate degree and a IGCSE Degree (International General Certificate of Secondary Education)
The public school system also teaches English from a very young age, with the idea that every school kid can eventually be bilingual.
In my school it was Spanish subjects in the mornings, lunch break and then English subjects in the afternoons. We had Biology, Maths, English Lit, Music and several other subjects entirely in English.
You were expected to speak English in the afternoons even among pupils (when chatting, borrowing an eraser, etc), though some teachers were more permissive than others.
It's ironic, but since some of the English teachers were very good, I have a better understanding of biology in English than I do in Spanish, for example.
You underestimate how shitty the English in other countries is.
When I was on vacations in Athens I had to ask the African immigrants for directions because nobody else around spoke English... by the end of my trip it had turned into a habit
When I was in Sao Paulo there were very few people who spoke English. I literally fucked 3 chicks without speaking anything that made sense to them. The best English was spoken by a very old white guy who owned a watch shop. I bought a vintage gold Cartier watch from him. The best English was spoken by a Brazilian girl with German parents. She actually had a German passport and came to visit me in Berlin while I was living there.
a lot of people in northern mexico, especially young ones speak english nowadays, but in the rest of the country people can barely speak spanish properly, let alone a second language