Regardless of where one happens to live at any moment in time, is it fair for a US citizen to expect to benefit from a health care system that is prohibited from denying coverage for pre-existing conditions but not have the obligation to pay into it while they are still healthy?
IMO, if you don’t participate in the program, you can’t expect to benefit from it.
Taiwan’s NHI doesn’t cover everything. Cancer, comes to mind, and while it may cover HIV for citizens, as a foreigner we stand to not only get the NHI canceled but booted out of the country as well, should we become infected.
The expat question is interesting because many expats (from the US, anyway) question the requirement for us to file taxes too, yet I would ask those people where would they run the first time shit hits the fan, like war breaks out here or they get arrested for something (fairly or unfairly). It could be argued that if a US expat doesn’t want to be subject to US tax, then they should give up access to any protection or services the US government provides. again