For the most part, I don't think any senior would actually go in the hot tubs or pools with "Attends/Depends" on. Could you imagine how embarassing/humiliating this would be for them. Give them some credit: after all, after having children, our bladders get a little weak too!!
Isn't it great that seniors are well enough to travel; after years of hard work and tears, they can finally enjoy themselves.
Just some food for thought.