I'm Taiwanese American so only slightly familiar. But from what I've heard from family and acquaintances still living there, it's the usual suspects: super high rent relative to salaries (and even crazier cost to own) especially amongst the youth, with no great job prospects.

It's a shame but I feel like this is the trend all over East Asia - work super hard and compete from the age of 5 and for what?

I'm lucky my father shipped me over to the US to live with my uncle because it was easy mode compared to Taiwan.