Most western European cultures have moved away from group bathing. Some of the northern Europeans still practice, but it seems to be disappearing.
When you answer natures call, just go naturally. If someone comes by, you are already in a vulnerable position. Why worry if you are completley naked? In an attempt to reduce an awkward situation I once made a deposit in the very place I was trying to avoid in the 1st place. Hence I now always strip down completely. Problem solved.
Duane