Same reason why they downgraded a lot of 2nd tier colleges to 'vocational' colleges: to increase the number of people they can put in a factory to work high pace, low pay slave jobs. This looks to be a shot at the laying flat kids who don't want to be taken advantage of, so they are removing the entertainment being relied on for something to do. Kids don't want to die for the party, they've seen nothing comes out of it, so they just passively resist.