Wow. I never thought there were something like that happened. But, I think her decision to leave ent world is correct. At least, it can reduce the public interest to her, which also can lessen stalker interest, although it won't remove these stalkers completely. I don't know how these girls dorm system. But, if I have to take reference from kpop idol, there should be in-dorm manager that live in the same apartment/building with them. So, whenever they leave the building, there is an adult that accompanying them, although they have to cover themselves really well, if they're happened to leave building alone. And, for bodyguard, I think that is only provided by the company, when they go for work.