Why can Cuba have free medical education for all?

Because Cuba is still a planned economy (refer to Chinese mainland in 1960s and 1970s), real estate and medical education have not undergone market-oriented reforms.

Cuba regards improving the health level of all citizens as an important strategic task of socialist construction, and puts forward the goal of "making everyone enjoy health". The primary secret of Cuba's efficient medical system lies in its primary medical system, especially the family doctor system. The family doctor's clinic in Cuba is located in the community, so it is very convenient to see a doctor. Family doctors also make home visits, so that patients can see a doctor without leaving home. This system greatly reduces the probability of "minor illness and serious illness".