It might help just to emphasize more to attendees that they *need* to think of people other than themselves when riding the elevator if things are going to run in any way even resembling smoothly, and as such need to get out of the elevator at the bottom, even if they only rode down so they could go further up.

And yes, for people who are handicapped, permanently or temporarily, elevator allowances need to be made. And were, every time I saw an issue.

Anyway, the policy was never clearly articulated that I saw, much less with the reasons for it. I think that would help a lot to get people to voluntarily implement it, with less need for elevator guards.