Sims will shower, bathe or use the toilet in their hotel rooms without caring about privacy.
Players can make communial bathrooms gender restricted for either males or females but this won't stop opposite sex service sims or mascots such as Maid Marrion or Marky Sharky from entering the bathroom to clean or entertain. This is most likely due to most campgrounds and bare bones lots having communial bathrooms that are not gender or age restricted. On Vacation Island, sims will shower and use the toilet in front of any sim regardless of relationship. Regardless, they will wait a while for all sims to leave the bathroom. The showering Sim will remain in the shower for a period of time waiting for all sims to leave the room but will step out after a period of time even if not all sims have left the room. Unlike later games, Sims may walk into a room while a Sim is in the shower, although they will be shooed out once the Sim stops showering. Children will almost always leave puddles. A Sim who uses the shower may sometimes leave a puddle of water on the floor in front of the shower, which will have to be cleaned.