you would 1) end up with no younger employees (the ones willing to work crazy hours who are in touch with the younger market and are often the tech movers) who do this on a regular basis, 2) depending on the state your in, possibly find yourself the defendant in a lawsuit or three.
no narcissism. i'm old in relation to those i'm talking about, barely care about facebook at all, and twitter could die a fiery death as far as i'm.
you must not be familiar with labor laws in many states. and yeah, if your business involves making big rocks into little rocks, then you don't need to worry about the youth market, but if your in one of the many fields that either depend on young employees, has a large income from the 16-34's, or one that benefits from them, then alienating that segment with overly restrictive policy isn't exactly a good move. not sure where the wishful nonsense your speaking of comes into play.
You're kinda wrong on this one. No picture or recording equipment (including smartphone) is a common secured area IT Policy. Also, if you're involved at all in healthcare, HIPPA. It's in the agreements you sign on the 1st day.
It's never enforced, It's just there so you can be held against it at any time and fired without compensation.