Don’t travel to South America then. Seems like the norm to play out loud from your phone there, no matter your age. I once sat at a restaurant in Colombia, where the restaurant was playing loud music, and every other table had someone also playing their own music or TikToks from their phone. I felt like a crazy person being the only one seemingly annoyed by it.
Then force him to read Dune and make him understand the Butlerian Jihad