lightbrite………
Please allow me to correct a misconception you have about people who eat or keep ‘kosher’.
Many of these people are not ‘frum’ but we we call Euro-traditional or Conservative. They may book a kosher cruise because it’s a family vacation and bubbe only eats kosher food. But the children and grandchildren will be partaking of all the regular ship activities, not attending shiurim or Jewish Music evening entertainments. Bubbe, herself may be happy with kosher food, but be the first in line for a nighclub show with scantily clad showgirls and also head for the casino.
I live in a small town. There are probably 100 homes with ‘kosher’ kitchens, but probably only one dozen of the families are ‘frum.’ BUT, without the support of the other 88% kosher butchers and bakers would not be in business. The same goes for kosher cruises, summer camps and even kosher kitchens at universities and colleges. A ‘kosher’ cruise does not guaranty a ‘kosher’ crowd.