Because it changes the relationship of the government and its people - one of the primary issues here is the open data policy. Without getting too technical Taiwan’s civil law is modeled after the german legal system. Any contract between the government and its people is therefore actually not a contract. When people want to make the government make everything open data they run into some legal problems because it’s like the government starts giving away its assets. People don’t really want the government to give away its assets because its taxpayer money and so on.