T is for tourist, and for traveller, and for twit. The last of those three labels seems the best for people who worry so much about this silly point. More comment than this is mis-said. Twenty years ago, over 900 people died in their Utopia in Jonestown, Guyana. There's a lesson there worth remembering any time you're tempted to ignore reality.
V is for vomiting, another authentic travel experience along the same line as fleas and flies.
W hen in Rome, do as the Romans do. I think this advice has been almost universally accepted for at least a couple thousand years. Despite that, an amazing number of people seem not to take it. X is for xenophobia. Everywhere you go in the world, people think the rest of the world is a dangerous place.