I've never been to South Korea. I'd like to go to Seoul. For me though, South Korea is a cautionary tale in what happens to a country when a handful of families get to control all the wealth, all the good jobs, all the good university places and so on while the working class gets squeezed ever more. There are cultural issues here too that are distinctly Korean, namely that women are expected to have a demanding job AND have children, look after those children and take care of the house (traditionally).
Young people in general aren't stupid (again, in general, not just China). They can look around and see they have limited opportunities, will probably never own a home, won't ever be able to retire, will have crippling debt (for college in the US), etc so it's natural to look around and say "what exactly is the point?" and, in some cases, just opt out. In the US you see this with things like "van life", moving to cheaper countries, tiny homes or just spending all your money on experiences because, to you, you have no future. I thin kreligion historically played a huge role in getting people to do those things anyway. But now, why would Alfred Q. Zoomer live paycheck-to-paycheck doing a shitty job just so Jeff Bezos can have slightly more money?
China at least has invested in eliminating poverty, building infrastructure (eg the high speed rail network) and transforming the lives of everyday Chinese people. Like I see Tiktoks from a rural Chinese woman who works in a shoe factory for $11/day but only really spends $1/day to live. She lives in a modern house (20+ years ago it was a rundown shack), has Internet, watches live streams, rides everywhere on an electric scooter and pays for everything digitally (of course).
Part of China's current woes are that Xi Jinping quietly just popped the real estate bubble and declared that houses are for living, not speculation. That market has been correcting itself for years ever since. But that's a long-term good.
I'll take the transformation of Chinese lives (not just in Tier 1 cities) over what's happened in coal mining country, the Rust Belt and agricultural communities in the US. It's not even close.
I suspect your information might be out-of-date because I've seen videos of tourists in Tier 3/4 cities (let alone Tier 2) and honestly it beats most US cities. There's no official list of tier cities but Chongqing is widely considered a Tier 2 city. Chongqing is widely called the "cyberpunk city" [4].
[1]: https://www.reuters.com/sustainability/society-equity/china-...
[2]: https://thediplomat.com/2026/05/why-china-treats-lying-flat-...
[3]: https://www.reuters.com/world/asia-pacific/chinas-youth-jobl...