Chinese railway and transportation industry belongs to the government,and its purpose is to serve the public.so in China's system,they are supposed to be financial supported by the government,just like medicare and education,it's long accepted and institionalized.that's different from most western countries.in Beijing,most public parks and all the public bathrooms(Beijing has most public bathrooms in the world) are free to the public,all museum in Beijing are free(Beijing has world second number of museums only second to London).buses in Beijing for unlimited ride is 0.05$,and free for senior citizens.subway for unlimited ride is 0.35$.they are all heavily susidized by the government,and that's alway the right way it is in China.The government has tons of money,it is just so natural for the government to subsidize public services and facilities.