I would love a lot trait that would encourage sims to sit down to watch a performance, be it singing, playing, theatrical acting, movies etc; and to keep their attention on it for approximately a sim hour, without the need to wander about. The lot trait could then be used for theatres, cinemas, concert halls, etc. TS3 had the option to add/not add seatings to the festival lot (I believe it was), and by that controlling the sims behaviour: if chairs were added, the sims used them, if not, they stood up. So the lot trait could theoretically have this as a double feature.
