Eu diria que sim:
do website developper.apple
OS X has always supported the use of a single machine by multiple users. Initially, this usage was exclusive; only one user at a time could log in to the console and use the machine. In version 10.3, OS X introduced a feature called fast user switching that lets multiple login sessions run concurrently on the same machine. With this feature, one user at a time is active on the machine while the other user’s sessions continue to run in the background.
Por que não apenas dar uma chance?