BTS 's jin is the oldest of the group so that means he will be in the military soon like other kpop male groups they have the oldest and the oldest has to go to off to the military without eachother so the group will disband and as the kpop world gets bigger and bigger the korea stocks get higher and higher without BTS or other groups korea will run out of stocks and money and then they'll run out of basic things such as apartment because they wont be able to afford construction workers to build them.