that's not how economics works. if that's the case, you would not see the Chinese governments (federal and local) doing desperate things to collect more revenues like:
- issuing massive traffic/parking tickets a year after, to the tune of tens of thousands of dollars, to commercial and normal drivers
- banks preventing normal withdrawals of money. often, deceased's children can't withdraw their parents savings, even with all the official documentations
It is. You can erase all debts by hyperinflation, for example.
China for sure has problems, but it's not the "crashing down tomorrow" kind of problems. They still have a robust growth, now that COVID restrictions are over.
Erasing debts wipes out (most) savings and hurts rich people. So it's not something that can be done lightly, but it is an option.
Also, Chinese HSR ridership is back up after COVID restrictions were lifted.