Hanfu is largely affectation. Funnily the CCP has to keep a tight rein on Hanfu fans as they fear most any attack on them from the Greater Authenticity / More Chinese than Thou Flank. Hanbok a bit affected too, chinese cheongsam dresses although Korean women never stopped dressing traditionally at least some of the time. Perhaps buried in there is some inchoate longing for the Golden Age (generally held to be Tang/Song) or just history that’s from a distance less sordid. But walk far down to the quiet end of a Soi in Central Bangkok and you are likely to see some of the people walking around at dusk wearing those checkered sarongs. As old as time. Thailand recently went through a craze of dressing up as Ayutthaya Period nobility after a period soap opera became very popular. Japanese, I think are the the most natural when it comes to wearing traditional clothes. Perhaps there’s a tiny inchoate smidgin of Revolt Against the Modern World in the blinged out old time clothing trends, but suspect most of it is East Asian penchant for quickly picking up on trends amplified to the nth by social media. It’s just a given in certain circumstances, never died (wee rough patch during Meiji/Taisho yes) and was going strong long before selfies and instagram, let alone the execrable TikTok. Weekend at a Ryokan, Onsen, pink hanfu or just a night out at the fireworks during summer will bring this home. I also like to see very old Chinese going about in the daytime wearing what are effectively pajamas. Increasingly rare sight though. Or just engage a carpenter’s crew for some home renovations – you might be surprised what they show up wearing! And I forgot the Vietnamese. The Aoidai never died and from following r/Vietnam on reddit there seems to be a thing for dressing up as scholars and aristocrats and being photographed.