Danish journalist has sex during interview for segment on swingers club
Some make several trips a year but few live permanently in the country, so they have little incentive to hand over a chunk of their earnings to social security.
Similarly, those individuals who seek to specifically exclude others they personally view as unattractive are often disappointed at many swingers' clubs because the patrons are not screened to their standards.
Swingers club: What I learnt from my night at ‘Our Secret Spot’ in Sydney
The realities of the demographics and basing of US Army Air Force USAAF pilots and crew suggest that this arrangement did not evolve during WWII, instead evolving later.