Re: The Cage bridge.
I've alway figured that the bridge railing was never meant to be at safety height for the upper stations. It was designed to be at Kirk-lean-upon height from below.
I say it was designed so that in a bumpy situation Yeoman Rand would have the choice whether she wanted to fall into Kirk's arms or grap on to the railing instead.
"The first duty of every Starfleet officer is to the truth, whether it's scientific truth or historical truth or personal truth! It is the guiding principle on which Starfleet is based! Jean-Luc Picard