Having one universal language (the one I'm a native speaker of, as it happens) would be a disaster culturally, but would require less homework.
BTS member Kim Namjoon posted a short video a few hours ago (while I was asleep, probably) saying that he had landed safely in LA. He started in English, flipped to Korean, flipped back to English to explain that he was cutting things short because he spilled water on the microphone. It sounded OK to me, but whatever.
Five hours after it was posted there were comments in many languages, but this one jumped out at me
"El jet lag es terrible." Yes, it is. He looked exhausted. I could read the next sentence that was full of not-English because I know a tiny bit of Spanish (basically the commenter told him to get some rest).
I don't know why he's in LA. I could probably find out, but if it's not an official appearance, it's none of my business, something many fans understand but there are others who just can't accept it. There was an incident the other day in Paris when a group of people stormed the hotel of another group member, resulting in a polite request from him to leave him alone and flame wars online between people who do such things and people who are furious that idols (like movie stars, I guess) are treated that way.
Yesterday near the end of service ringing at Old North the head of the historical department popped in to say that there was a senator from Wyoming coming up, and were we almost done? I told her we'd by out as scheduled at 1 PM. We barely had the bells down before he and his entourage showed up. I was disgruntled that such a person was invading my space, but we heard from the educator downstairs about how they deal with any tourist who has a security person/detail, so I have a small bit of indignation available that even someone like that, who voted for the terrible bill* should have to have security to do a simple thing like visit a cool historical site while on vacation.
*
https://www.barrasso.senate.gov/barrasso-statement-on-senate-passage-of-the-one-big-beautiful-bill/