I havenīt read the whole tread, but I just want to express my opinion about the use of native language in Spain, Greece, France etc. (basically the part of Europe where one stands up to take a dump).
IT IS ANNOYING - to say the least. Any pilot paid to fly should be professional enough to speak English while at work, that would force ATC to do the same.
I may be wasting my time here, as I suspect the people my frustration is aimed at may not even read this, because;
a) it is in English, and
b) because this website is for professional pilots