Those Elevators Are Doomed to Failure.
Consider the scenario of needing to climb into an elevator as a 6’6″ person in a building that is presumably packed with people. To say that you will undoubtedly be the centre of attention would be an understatement of the case. This is not to mention all of the people who have inquired about the capacity limitation.
Alternatively, imagine having to be concerned about having to duck your head before entering while also being concerned about the capacity restriction. There are no boundaries to what can be accomplished. You can see how much we would dread the notion of being in such a precarious predicament.