* No infrastructure unless you drive a bike. So children, older or disabled people mostly have to stay at home.
* Lack of recreational infrastructure in cities. There are some parks, but it not a place where you would want to go.
* Air quality in big cities is actually terrible.
* Smaller and more touristic places have better infrastructure and air, but have no entertainment whatsoever. Like having single shopping mall for city with 300,000 population.
* Free education is very lacking. There are paid options, but they are expensive even for rich vietnamese.
* Same true for medical services. Yeah you might find cheap dentist, but for some health problems you will need to look options outside of Vietnam.
* No pension system unless you been working for government.
Some of issues can of course be compensated by fact of how cheap human labour is, but unfortunately having personal maid and cook wont help you with entertainment for your family or quality of air.