While I agree with your post wholeheartedly HawaiiDan,
If the ship "accepts" children as was posted above
by Kathy ( they have a " Children's activity director?") WHO KNEW??
then the ship is maybe "geared towards adults" but not an adult only ship so you can't expect there to be no kids at all.
If you are looking for an adult only cruise for sure you gotta go on an Adult only ship Dan such as SeaDream Yacht Club or Oceania.