Should a beginner try to educate others about the benefits of Vipassana?
Well, if you take your own case as a guideline, most people really just need a point or nudge in the right direction.  Depending on how interested people are, you might share the benefits you've discovered.  

If it's a teacher or another great being who is putting practice into their daily life, talking and discussing can be great.  Especially view these people as pure guides so you can benefit as much as possible.

On the whole, the practice should transform your life and pysche, so if you are talking about practice without letting the transformation happen first, it's no good.  We must transform, then let our lives-as-examples embody the truth we wish to speak. 

Writing is also very important, so if you have a friend with whom you can write back and forth about Dharma, so much the better.  To journal your own notes and gather your thoughts is prime.

In general, if you are really interested in bettering someone else's life, a master would spend a decent amount of their effort trying to understand what that person needed and how they could present it in a gradual and follow-able way that would lead to fruition for the person, but also the knowledge that it is effort which carries you.