University's tuition problem

I think tuitions of universities are very high. I know the tuition compose of professor’s salary and other remain things like bill of remaining buildings but there is something else. The universities keep gathering money I can’t understand why and now people are very angry to this problem. There was a campaign pledge which was trying to down tuition to half but suddenly it vanished. People wouldn’t mind but the tuition keeps going so people realize there was a pledge. People was complaining about tuition so universities and government try to solve this problem but there are a lot of troubles but finally Seoul mayor announced he would perform the half tuition. But people are worried about this solution because he said he will gather tax and use University of Seoul’s tuition. I’m Seoul citizen and I don’t want to pay other people’s tuition. I didn’t get any other benefit but why he enforce us to pay other’s tuition? He said it’s good for our children and it will be start to down other universities’ tuition. But why it should be our tax? I know it’s fixed and other universities will down their tuition to 5%. It’s not half but it will be good for students. There is difference. University of Seoul will be supported from Seoul but university of Incheon will down 5% themselves. What do you think what is different? Both universities are supported by city and I think they have ability to down their tuition. I think university of Seoul is supported from Seoul so other private university would complain about this tax thing?