Who gives a shit what you eat at an airport? That's probably the most utilitarian food imaginable. Plus, because of all the unknown international cross-contamination, there's also the major "at your own risk" consideration. Complaining, judging, negging, or memeing about who eats what at the airport in any sort of serious capacity when it doesn't affect anybody AT ALL is bizarre and gives me "we have Seinfeld at home but he's just a cringe asshole" vibes.