It's partly a problem because of those bloody hospital gowns that gape at the back, and partly because men on geriatric wards have been known to wander about not caring what's on view. I think there have been incidents and even attacks. Maybe it's a thing women mind more than men (after all, look at the amount of exposure men are used to in public loos, which seems unthinkable to women). It would certainly have put me off going into hospital, though I don't like the places anyway.