Years ago, back when DH and I cruised a bit, we met more than a few older gentlemen who lived this way (the "dance hosts" mentioned in the WP article). To a man, they were all outgoing, friendly, well-dressed, and EXCELLENT dancers. The men told us the cruise lines (then - not sure if still) substantially subsidized their fares, if not waived them, in exchange for being attentive dance partners and friendly fellow passengers to the many, many women cruisers… To this day, DH sometimes mentions that if I ever get hit by a bus (!), he's headed for the cruise terminal to sign up!