On a long ago cruise on the dear & departed Diamond, back when Regent was Radisson, the policy was an open bridge. Basically the doors to the bridge were open and passengers were free to wander in whenever the fancy struck them.  A number of folks took advantage, largely but not exclusively men.  I was a "frequent flyer" and loved it.  I've never experienced that on any other cruise, although one and only one cruise on the Paul Gauguin had a liberal policy of signing up for tours of the brid