Critical support to this guy's large adult son, who is either:
Offline enough to not know about Japan through manga/anime/Vtubers/Jpop/hentai/video games and genuinely didn't know his father was making a huge mistake
or
Knows and opted not to tell his brain dead father for a free trip to Japan
Nice thesis and antithesis there, but I must propose the synthesis "offline enough to not know about Japan through pop culture soft power shit, but also totally knew his dad was being an ass but opted not to say anything in order to get a free trip to Japan"