You've probably seen this picture before, maybe on some other website next to some ad with a doctor saying "I recommend Laramie to all my patients" or something like that. We definitely wouldn't run this ad now, but back then I bet nobody thought it was strange at all. The same picture and tagline actually got used in a few different places, so it must have been fairly successful. You can see another example below.
We've been selling group shower fixtures since the 30's, and the fact is it always makes sense to install fixtures that use space and water economically in larger facilities. The thing that changes is our sense of modesty. Maybe try out one of our showers that include privacy stalls?