Suggestion : Free choosing of language

Dont know where to put else but i would like to be able to change the language of my launcher to any translated. For example im playing in EUW and live in Germany but would like to change the language of my launcher to polish. But right now i only can do that on EUNE. A student friend lives here but is japanese and would like to play in japanese on EUW but that also doesnt work. Why is it only possible on certain servers? Could you change it to be able to choose any language everywhere? Hope Riot will read it :P. Thanks for considering ps: put this in the right place if its in the wrong board.
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