Evidently couples dancing is very big in Hong Kong. I’ve read that people take dance lessons there the same way that many American businessmen take golf lessons - it’s something you need to be able to do as part of your job.
My ballroom lessons are $90 for four private half-hour lessons, and that covers two people!
That’s almost $5300 per day, if she took lessons 24 hours a day it’s almost $220/hour. If I was the instructor, I’d be worried something fishy was going on. If we useZsofia’s example and lets say the person took 4 lessons each day, it would still be under $300k for eight years.