They are a privileged class, even the few with parents that have the means to send them on cruises only see what they are supposed to see. They will brag about going to Mexico, Honduras etc but only the safer ports, never the slums.
Compare that to Christian missionaries that go deep into dangerous places and live among the people they are trying to help. Or our LEO's, military, and other 1st responders, they deal with reality, every day. Our own img trolls are ignorant by choice