This is one of those moments when you just realize how good hearted some people can be. A Caribbean doctor learned Welsh so that he could speak with his patients in their own language.
Don’t misinterpret this as “they can’t speak English,” every single Welsh speaker can speak English; there may have been a few that couldn’t, deep in the valleys, up until about 1960, but these days absolutely everyone speaks English.
The reason he’s learned it is because it means a lot to native Welsh speakers to be able to have a conversation in their native language, particularly in hospital when they aren’t around their Welsh speaking family and friends. I was in hospital recently and there are posters up showing English-only nurses how to ask a patient if they want a cup of tea in Welsh, because even small things like this can make a lot of difference to their experience of being in hospital.