Last night I was a volunteer at a 3 hour long dance recital held at a theater (you know, a building with a stage down front, seats, and darkness...) Parents were told in writing, at rehearsals, and at the beginning of the performance - no electronics. No phones, iPads, Nooks, Nintendo, MP3 players, DVD players, etc, etc, etc. In fact, they were told that if a small child needed electronics to be entertained, they child should be left at home with, gasp, a baby sitter. And, of course, there were countless people who ignored the rules, including parents trying to keep small children quiet by using small DVD players. And, when I politely asked them to turn off their devices, they gave me crap.
The problem more universally is that people no longer know how to behave, and no matter how well the rules are promulgated, they believe the rules surely apply to everyone else, but not to them.
UNIX was not designed to stop you from doing stupid things, because that would also stop you from doing clever things. -- Doug Gwyn