Work in China can pay little in comparison to what people in America make. Sometimes the people live in dormitories at the site. They are known for team work with the ability to construct bridges and buildings quickly. Watch this Rapid build. They rebuilt a bridge in just 36 hours through careful planning.
The average worker in China makes about 1/10 of what an average wage in the USA. So if you make $10.00 an hour here, what would a person there make?
The people that live in the rural areas generally live poorly. The high speed trains aren’t everywhere and in rural areas transportation can be dangerous. Trains can be very crowded and dirty.
Take a look at this Video about growing rice in rural area.