My mum said these fans are so crazy. My parents's colleagues said that they're wasted their time and youth. I was confused why they thought so. Loving an idol is their choice and the idol becomes their belief. They has their whole world and maybe have friendship with strangers because of they have the same idol and hobbies. They have time to be crazy because they have no chance being crazy again when they become old. It also can be a memory that records their youth. If having an idol doesn't obstruct the normal life, I think my parents should not criticize K-pop or even other fans.