Final answer:
The provided references do not directly answer why Steve Jobs shaved his beard, as they focus more on historical figures and their grooming habits. Steve Jobs might have shaved for personal or aesthetic reasons, although this is not explicitly documented.
Step-by-step explanation:
The question 'Why did Steve Jobs shave off his beard?' seems to be a confusion with historical figures and periods. Steve Jobs, the co-founder of Apple Inc., was known for having a beard during certain periods of his life but details specific to the reasons for changes in his grooming choices, such as shaving his beard, are not commonly documented. However, touching upon historical practices of grooming, individuals like Julius Caesar took great care of their appearances for various reasons. Caesar, for example, was meticulous about his grooming, shaving his face, and even plucking out extra hair to maintain a particular image to avoid the subject of his detractors' insults regarding his baldness.
The references provided do not directly answer the question about Steve Jobs but rather give insight into historical figures and grooming practices. It is possible that Steve Jobs, much like other historical figures, groomed himself in a way that would relay a certain image or for personal preference. Therefore, the subject of why Steve Jobs chose to shave, if indeed he did at a particular point, could stem from a variety of personal or aesthetic reasons, none of which are specified within the provided information.