I feel this point. I'd argue that these kids are rich even for Norwegian standards. You don't need a plane to see some stark contrasts. Just take tram 61 from Musikerviertel to Tannenbusch.[1]

1: A local (to me) tram line that leads from an expensive inner-city region to an affordable ghetto in under ten minutes. If you are born there (Tannenbusch) chances are you will spent most of your time there. If on the other hand, you are in Bonn to study at the local university, you probably don't know it exists.