China already has universal healthcare, it’s just not very good yet.
In China, we only have one type of healthcare, the one that needs to be paid. There is no healthcare for free here.
(Unless of course, you're a high ranking CCP party member, that way you can enjoy all the goodies from all over the country for free, including free blood plasma from young people* to keep you feel good when you're old. *Caution: HIV maybe included due to technical difficulties).
Never donate blood in China, unless you are forced to by your school/work unit/whatever.