Because as you put it, >"The measure I would apply is whether middle class people can live in the city", there are cities in Austria that are much cheaper for t

Because as you put it, >"The measure I would apply is whether middle class people can live in the city", there are cities in Austria that are much cheaper for the middle class, as I said in the original post. The fact that there are cities in Germany, or in any other country, that are even more expensive is irrelevant for the people here.