I doubt I'm the only obnoxious country dude who rolls into Starbucks and orders a "large". You can ignore their pretentious names, they're very accommodating.
It's probably more that you don't want a corporation to dictate how you describe (brand) the sizes of a drink where we have near universal language for that purpose already.
Too much experience with cattle and thus not longing to resemble them. One of 'm says 'moo' and soon the rest follows. Now just imagine a ${city_equivalent_of_field} full of city folk where one of 'm says 'venti' and you understand what I mean.