I have been known to do that, too--send sims off into the world to visit other neighborhoods.
I haven't played with the possibility much but nowadays it seems like you could create additional shopping districts and downtowns that are really additional neighborhoods and have one big world populated by one set of sims. I know that a college campus is different but does it really matter whether a neighborhood is a neighborhood, a shopping district, or a downtown?
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Who are all these people and what do they know?
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