Well let me share my views/questions. Its about the comfort level.
While I visited Istanbul and have seen a lot of folks from different parts of the world, yet there is no common language developed as means of communication. For example in dubai, the public and private sectors english is understood to be the medium of communication and for a person to choose a 2nd home, it makes a big difference.
In turkey it was really tough for us to communicate in english. Apart from this disadvantage, which is a big one, i found the place better than Dubai in so many ways (cost of living, weather, people are welcoming).
Essentially how was your experience when you live in turkey and you run for errands and not knowing turkish. must have been a big issue I reckon, or not?
I read that in order to get a residence permit the govt officials need you to have a lawyer because they would not speak in english and is this across the board, for example if you have an emergency and you go into a hospital, how would you communicate?